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Best Seller
Brownells Extra Length Cotton Swabs - 16" Swab, 100-Pak

Brownells Extra Length Cotton Swabs - 16" Swab, 100-Pak

Extra-length, Polypropylene handle gives you plenty to hang onto when reaching up inside short and magnum-length rifle actions and barrel chambers. Use the cotton applicator tip to clean, lubricate, touch-up bluing, and for countless other jobs... ... more

Brownells Extra Length Cotton Swabs - 16" Swab, 100-Pak

Extra-length, Polypropylene handle gives you plenty to hang onto when reaching up inside short and magnum-length rifle actions and barrel chambers. Use the cotton applicator tip to clean, lubricate, touch-up bluing, and for countless other jobs...

$11.99

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Brownells Drive Handle - 10 1/2"x1/2" Drive Handle

Brownells Drive Handle - 10 1/2"x1/2" Drive Handle

Use with AR-15/M16 Combination Wrench to loosen the barrel nut and remove barrel. Long enough to provide ample leverage. Mfg: Brownells SPECS: Chrome-plated steel. 10� (26.7cm) long. 13⁄16" (20.6mm) diameter handle. ... more

Brownells Drive Handle - 10 1/2"x1/2" Drive Handle

Use with AR-15/M16 Combination Wrench to loosen the barrel nut and remove barrel. Long enough to provide ample leverage. Mfg: Brownells SPECS: Chrome-plated steel. 10� (26.7cm) long. 13⁄16" (20.6mm) diameter handle.

$13.49

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Best Seller
Brownells Ar-15/M16 Receiver Taps & Dies - 1.250"-18 Tpi Tap

Brownells Ar-15/M16 Receiver Taps & Dies - 1.250"-18 Tpi Tap

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... ... more

Brownells Ar-15/M16 Receiver Taps & Dies - 1.250"-18 Tpi Tap

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver...

$67.99

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Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Tap

Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Tap

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... ... more

Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Tap

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver...

$74.99

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Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Die

Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Die

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... ... more

Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Die

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver...

$83.99

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Brownells Forcing Cone Flex Hone - 16 Gauge Fine Flex Hone

Brownells Forcing Cone Flex Hone - 16 Gauge Fine Flex Hone

The finishing touch for forcing cones cut with Long Forcing Cone Reamers. Taper matches perfectly so the maximum amount of abrasive media contacts the barrel's surface for faster, more effective polishing action, with less elbow grease and work.... ... more

Brownells Forcing Cone Flex Hone - 16 Gauge Fine Flex Hone

The finishing touch for forcing cones cut with Long Forcing Cone Reamers. Taper matches perfectly so the maximum amount of abrasive media contacts the barrel's surface for faster, more effective polishing action, with less elbow grease and work....

$62.99

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Brownells Shotgun Barrel Polishing Flex Hone - 16 Gauge Fine Flex Hone, Bore

Brownells Shotgun Barrel Polishing Flex Hone - 16 Gauge Fine Flex Hone, Bore

Hundreds of abrasive "balls" mounted on a flexible shaft - the fastest, easiest way we've come across to clean and polish older barrels or put a mirror polish in new ones. For used barrels, the Medium-Coarse hone, followed by the Fine, removes rough... ... more

Brownells Shotgun Barrel Polishing Flex Hone - 16 Gauge Fine Flex Hone, Bore

Hundreds of abrasive "balls" mounted on a flexible shaft - the fastest, easiest way we've come across to clean and polish older barrels or put a mirror polish in new ones. For used barrels, the Medium-Coarse hone, followed by the Fine, removes rough...

$60.99

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Brownells "handled" Chamber Brushes - 16 Gauge "handled" Shotgun Chamber Brush

Brownells "handled" Chamber Brushes - 16 Gauge "handled" Shotgun Chamber Brush

Extra heavy-duty, brass bristled brushes remove the toughest powder and wad fouling from chambers. Looped and twisted steel shanks with contoured, solvent-proof handles. Long enough to clear barrel extension. Mfg: Brownells SPECS: 12" (30.5cm)... ... more

Brownells "handled" Chamber Brushes - 16 Gauge "handled" Shotgun Chamber Brush

Extra heavy-duty, brass bristled brushes remove the toughest powder and wad fouling from chambers. Looped and twisted steel shanks with contoured, solvent-proof handles. Long enough to clear barrel extension. Mfg: Brownells SPECS: 12" (30.5cm)...

$9.99

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Brownells Power Custom Brass Muzzle Crowning Lap - Non-Handled Fits Bore .44-50 Tip Radius 5/16" (7.

Brownells Power Custom Brass Muzzle Crowning Lap - Non-Handled Fits Bore .44-50 Tip Radius 5/16" (7.

Four different sizes of brass laps produce a beautiful, finished crown on all pistol and rifle barrels when used with 600 grit silicon carbide abrasive and your hand drill. Mfg: Brownells SPECS: Brass. 3" (7.62cm) long. Sets include (4) laps, one of... ... more

Brownells Power Custom Brass Muzzle Crowning Lap - Non-Handled Fits Bore .44-50 Tip Radius 5/16" (7.

Four different sizes of brass laps produce a beautiful, finished crown on all pistol and rifle barrels when used with 600 grit silicon carbide abrasive and your hand drill. Mfg: Brownells SPECS: Brass. 3" (7.62cm) long. Sets include (4) laps, one of...

$12.99

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Brownells Ar-15/M16 Receiver Taps & Dies - 1-3/16-16 Carbon Steel Hex Die

Brownells Ar-15/M16 Receiver Taps & Dies - 1-3/16-16 Carbon Steel Hex Die

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... ... more

Brownells Ar-15/M16 Receiver Taps & Dies - 1-3/16-16 Carbon Steel Hex Die

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver...

$39.99

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Brownells Ar-15 12.7" A1 Carbine Barrel Assembly - Ar-15 12.7" A1 Carbine Barrel 1-12 Twist Assembly

Brownells Ar-15 12.7" A1 Carbine Barrel Assembly - Ar-15 12.7" A1 Carbine Barrel 1-12 Twist Assembly

Introducing the Brownell's Retro A1 12.7" carbine length barrel assembly. Chambered in 5.56x45mm NATO, the chrome lined barrel is available with your choice of 1-7" or 1-12" rifling and finished in black phosphate with an overall length of 12.7".... ... more

Brownells Ar-15 12.7" A1 Carbine Barrel Assembly - Ar-15 12.7" A1 Carbine Barrel 1-12 Twist Assembly

Introducing the Brownell's Retro A1 12.7" carbine length barrel assembly. Chambered in 5.56x45mm NATO, the chrome lined barrel is available with your choice of 1-7" or 1-12" rifling and finished in black phosphate with an overall length of 12.7"....

$199.99

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Brownells Ar-15 10mm Auto Barrels 4150 Steel - 10mm Auto Barrel 10.5" 1-16 Twist 4150 Steel

Brownells Ar-15 10mm Auto Barrels 4150 Steel - 10mm Auto Barrel 10.5" 1-16 Twist 4150 Steel

The Brownells 10mm Auto AR-15 barrel allows fans of the powerhouse 10mm cartridge to built an AR-style carbine or pistol chambered in their favorite pistol round, enhancing its usability with a new platform. The Brownells 10mm Auto AR-15 barrel is... ... more

Brownells Ar-15 10mm Auto Barrels 4150 Steel - 10mm Auto Barrel 10.5" 1-16 Twist 4150 Steel

The Brownells 10mm Auto AR-15 barrel allows fans of the powerhouse 10mm cartridge to built an AR-style carbine or pistol chambered in their favorite pistol round, enhancing its usability with a new platform. The Brownells 10mm Auto AR-15 barrel is...

$149.99

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Brownells Hk417 Style Barrel 7.62mm Nato 16in Isonite - Hk417/Mr762 16" 7.62mm Nato Barrel With Ison

Brownells Hk417 Style Barrel 7.62mm Nato 16in Isonite - Hk417/Mr762 16" 7.62mm Nato Barrel With Ison

$20 off $200+. Use code SEPT20

For those on the search for a perfect barrel to fit a reproduction build of the Heckler & Koch HK417, this Brownells HK417 Style Barrel is made right here in the USA as an option for HK fans building their next homage rifle. Each Brownells HK417... ... more

Brownells Hk417 Style Barrel 7.62mm Nato 16in Isonite - Hk417/Mr762 16" 7.62mm Nato Barrel With Ison

For those on the search for a perfect barrel to fit a reproduction build of the Heckler & Koch HK417, this Brownells HK417 Style Barrel is made right here in the USA as an option for HK fans building their next homage rifle. Each Brownells HK417...

$429.99 $249.99

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Brownells Brn-4/Hk416 Compatible Piston Rod Assembly - Brn-4 416 Compatible Operating Rod Assembly

Brownells Brn-4/Hk416 Compatible Piston Rod Assembly - Brn-4 416 Compatible Operating Rod Assembly

U.S. made operating rod assembly for the Heckler & Koch 416, 417, MR556, MR762 and G28 firearms. High quality replacement or build component. Includes complete operating rod assembly with spring installed. Mfg: Brownells ... more

Brownells Brn-4/Hk416 Compatible Piston Rod Assembly - Brn-4 416 Compatible Operating Rod Assembly

U.S. made operating rod assembly for the Heckler & Koch 416, 417, MR556, MR762 and G28 firearms. High quality replacement or build component. Includes complete operating rod assembly with spring installed. Mfg: Brownells

$89.99

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Brownells Brn-4/Hk416 Compatible Piston Assembly - Brn-4 416 Compatible Piston Rod Assembly

Brownells Brn-4/Hk416 Compatible Piston Assembly - Brn-4 416 Compatible Piston Rod Assembly

U.S. made gas piston assembly for the Heckler & Koch 416, 417, MR556, MR762, G28, G36 and SL8 firearms. High quality replacement or build component. Stainless steel piston, includes gas rings. Mfg: Brownells ... more

Brownells Brn-4/Hk416 Compatible Piston Assembly - Brn-4 416 Compatible Piston Rod Assembly

U.S. made gas piston assembly for the Heckler & Koch 416, 417, MR556, MR762, G28, G36 and SL8 firearms. High quality replacement or build component. Stainless steel piston, includes gas rings. Mfg: Brownells

$39.99

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Brownells Brn-4/Hk416 Compatible Gas Rings - Brn-4 416 Gas Ring 3 Pack

Brownells Brn-4/Hk416 Compatible Gas Rings - Brn-4 416 Gas Ring 3 Pack

U.S. made gas rings for the Heckler & Koch 416, 417, MR556, MR762, G28, G36 and SL8 firearms. Includes the 3 needed for a complete installation or replacement of worn out rings. Mfg: Brownells ... more

Brownells Brn-4/Hk416 Compatible Gas Rings - Brn-4 416 Gas Ring 3 Pack

U.S. made gas rings for the Heckler & Koch 416, 417, MR556, MR762, G28, G36 and SL8 firearms. Includes the 3 needed for a complete installation or replacement of worn out rings. Mfg: Brownells

$9.99

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Brownells Brn-4 Buffer Retainer

Brownells Brn-4 Buffer Retainer

The BRN-4 Buffer Retainer is the perfect buffer retainer for HK416 or MR556 type firearms. Machined from stainless steel to exacting dimensions. Will not work in AR-15/M16 firearms. BRN-4 or HK416/MR556 lower receiver with roll pin retention of the... ... more

Brownells Brn-4 Buffer Retainer

The BRN-4 Buffer Retainer is the perfect buffer retainer for HK416 or MR556 type firearms. Machined from stainless steel to exacting dimensions. Will not work in AR-15/M16 firearms. BRN-4 or HK416/MR556 lower receiver with roll pin retention of the...

$9.99

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Brownells Upper Receiver Bushing For Hk416 & Mr556 - Brn-4 Upper Receiver Op Rod Bushing For Hk416 &

Brownells Upper Receiver Bushing For Hk416 & Mr556 - Brn-4 Upper Receiver Op Rod Bushing For Hk416 &

U.S. made aftermarket replacement upper receiver op rod bushing for the Heckler & Koch 416 or MR556 Rifles. Mfg: Brownells ... more

Brownells Upper Receiver Bushing For Hk416 & Mr556 - Brn-4 Upper Receiver Op Rod Bushing For Hk416 &

U.S. made aftermarket replacement upper receiver op rod bushing for the Heckler & Koch 416 or MR556 Rifles. Mfg: Brownells

$11.49

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Brownells Brn-4 416/Mr556 Complete Bolt Carrier Group - Brn-4 416 Type Complete Bcg Nitride

Brownells Brn-4 416/Mr556 Complete Bolt Carrier Group - Brn-4 416 Type Complete Bcg Nitride

$20 off $200+. Use code SEPT20

BRN-4 Complete Bolt Carrier Group for 416 Type Firearms This Completely assembled BRN-4 Bolt Carrier Group is ready to drop into HK 416, MR556 or other compatible upper receivers & firearms. Utilizing high quality materials, finishes and inspection... ... more

Brownells Brn-4 416/Mr556 Complete Bolt Carrier Group - Brn-4 416 Type Complete Bcg Nitride

BRN-4 Complete Bolt Carrier Group for 416 Type Firearms This Completely assembled BRN-4 Bolt Carrier Group is ready to drop into HK 416, MR556 or other compatible upper receivers & firearms. Utilizing high quality materials, finishes and inspection...

$299.99

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Brownells Brn-4 416 Gas Blocks - Brn-4 416 Type Gas Block For 14.5/16in Barrels

Brownells Brn-4 416 Gas Blocks - Brn-4 416 Type Gas Block For 14.5/16in Barrels

New Manufacture Gas Blocks for 416 Type Barrels & Firearms These new production 416 type Gas Blocks are machined from billet steel to provide long life, during the most extreme use. To ensure high performance, the Gas Blocks are machined from... ... more

Brownells Brn-4 416 Gas Blocks - Brn-4 416 Type Gas Block For 14.5/16in Barrels

New Manufacture Gas Blocks for 416 Type Barrels & Firearms These new production 416 type Gas Blocks are machined from billet steel to provide long life, during the most extreme use. To ensure high performance, the Gas Blocks are machined from...

$160.99

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Brownells Brn-4 Barrel Nut

Brownells Brn-4 Barrel Nut

The BRN-4 Barrel Nut is the perfect barrel nut for your BRN-4, HK416, or MR556 built. Machined to exact dimensions to work with HK style handguards. Recommended Barrel Nut Torque: 50-80 ft/lbs Mfg: Brownells ... more

Brownells Brn-4 Barrel Nut

The BRN-4 Barrel Nut is the perfect barrel nut for your BRN-4, HK416, or MR556 built. Machined to exact dimensions to work with HK style handguards. Recommended Barrel Nut Torque: 50-80 ft/lbs Mfg: Brownells

$49.99

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Brownells Brn-4 Gas Block Coil Pins 2-Pack - Brn-4 Gas Block Coil Pins, 2-Pack

Brownells Brn-4 Gas Block Coil Pins 2-Pack - Brn-4 Gas Block Coil Pins, 2-Pack

Gas block coil pins for the BRN-4. These pins are the correct size pins to use with the Brownells BRN-4 gas blocks and all the BRN-4 barrels. These pins will also work with the HK416/MR556 platform as well. Packaged two per pack. Mfg: Brownells ... more

Brownells Brn-4 Gas Block Coil Pins 2-Pack - Brn-4 Gas Block Coil Pins, 2-Pack

Gas block coil pins for the BRN-4. These pins are the correct size pins to use with the Brownells BRN-4 gas blocks and all the BRN-4 barrels. These pins will also work with the HK416/MR556 platform as well. Packaged two per pack. Mfg: Brownells

$11.49

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Brownells Brn-4 Barrels 5.56x45mm - Brn-4 10.4" Barrel Heavy Profile 1-7 1/2-28"

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 10.4" Barrel Heavy Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit... ... more

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 10.4" Barrel Heavy Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit...

$299.99 $179.99

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Brownells Brn-4 Barrels 5.56x45mm - Brn-4 14.5" Barrel Heavy Profile 1-7 1/2-28"

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 14.5" Barrel Heavy Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit... ... more

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 14.5" Barrel Heavy Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit...

$299.99 $179.99

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Brownells Brn-4 Barrels 5.56x45mm - Brn-4 14.5" Barrel Medium Profile 1-7 1/2-28"

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 14.5" Barrel Medium Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit... ... more

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 14.5" Barrel Medium Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit...

$299.99 $179.99

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Brownells Brn-4 Barrels 5.56x45mm - Brn-4 16" Barrel Medium Profile 1-7 1/2-28"

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 16" Barrel Medium Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit... ... more

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 16" Barrel Medium Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit...

$299.99 $179.99

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Brownells Brn-4 Barrels 5.56x45mm - Brn-4 10.4" Barrel Medium Profile 1-7 1/2-28"

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 10.4" Barrel Medium Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit... ... more

Brownells Brn-4 Barrels 5.56x45mm - Brn-4 10.4" Barrel Medium Profile 1-7 1/2-28"

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit...

$299.99 $179.99

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Brownells Brn-4 Stripped Upper Receiver Billet

Brownells Brn-4 Stripped Upper Receiver Billet

$20 off $200+. Use code SEPT20

Assemble your own BRN-4 Upper Receiver Assembly Machined from billet aluminum the new BRN-4 Stripped Upper Receiver mates perfectly with the Brownells BRN-4 barrels, gas system components and bolt carrier group. Assemble a BRN-4 Upper Receiver Group... ... more

Brownells Brn-4 Stripped Upper Receiver Billet

Assemble your own BRN-4 Upper Receiver Assembly Machined from billet aluminum the new BRN-4 Stripped Upper Receiver mates perfectly with the Brownells BRN-4 barrels, gas system components and bolt carrier group. Assemble a BRN-4 Upper Receiver Group...

$299.99

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Brownells Ar-15 Premium Lightweight Barrels 223 Wylde - 16" Lightweight Barrel 1-8 Tw Mid-Length 1/2

Brownells Ar-15 Premium Lightweight Barrels 223 Wylde - 16" Lightweight Barrel 1-8 Tw Mid-Length 1/2

Premium barrel configuration for hard use with classic hard chrome bore and chamber. The Brownells Premium Lightweight Carbine Barrels come in a variety of popular lengths, ready to suite any new carbine build. Ballistic Advantage is manufacturing... ... more

Brownells Ar-15 Premium Lightweight Barrels 223 Wylde - 16" Lightweight Barrel 1-8 Tw Mid-Length 1/2

Premium barrel configuration for hard use with classic hard chrome bore and chamber. The Brownells Premium Lightweight Carbine Barrels come in a variety of popular lengths, ready to suite any new carbine build. Ballistic Advantage is manufacturing...

$169.99

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Brownells Brn-16a4 Complete Upper Receiver - Brn 16a4 20" Upper Receiver

Brownells Brn-16a4 Complete Upper Receiver - Brn 16a4 20" Upper Receiver

$55 off $500+. Use code SEPT55

The BRN-16A4 features the correct components you're seeking in a M16A4 build. With the classic 20 inch Government profile 5.56x45mm NATO barrel, the BRN-16A4 has an instantly recognizable appearance. The 20 inch barrel has a chrome bore and chamber,... ... more

Brownells Brn-16a4 Complete Upper Receiver - Brn 16a4 20" Upper Receiver

The BRN-16A4 features the correct components you're seeking in a M16A4 build. With the classic 20 inch Government profile 5.56x45mm NATO barrel, the BRN-16A4 has an instantly recognizable appearance. The 20 inch barrel has a chrome bore and chamber,...

$599.00

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Brownells Brn-4 Assembled Upper Receivers - Brn-4 10.4" Assembled Upper Receiver Heavy Barrel

Brownells Brn-4 Assembled Upper Receivers - Brn-4 10.4" Assembled Upper Receiver Heavy Barrel

$130 off $1000+. Use code SEPT130

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device,... ... more

Brownells Brn-4 Assembled Upper Receivers - Brn-4 10.4" Assembled Upper Receiver Heavy Barrel

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device,...

$1,199.00

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Brownells Brn-4 Assembled Upper Receivers - Brn-4 16" Assembled Upper Receiver Medium Barrel

Brownells Brn-4 Assembled Upper Receivers - Brn-4 16" Assembled Upper Receiver Medium Barrel

$130 off $1000+. Use code SEPT130

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device,... ... more

Brownells Brn-4 Assembled Upper Receivers - Brn-4 16" Assembled Upper Receiver Medium Barrel

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device,...

$1,199.00

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Brownells Brn-4 Assembled Upper Receivers - Brn-4 14.5" Assembled Upper Receiver Medium Barrel

Brownells Brn-4 Assembled Upper Receivers - Brn-4 14.5" Assembled Upper Receiver Medium Barrel

$130 off $1000+. Use code SEPT130

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device,... ... more

Brownells Brn-4 Assembled Upper Receivers - Brn-4 14.5" Assembled Upper Receiver Medium Barrel

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device,...

$1,199.00

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Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 16" Barrel Medium Chrome Lined/Phosphate 5.56x

Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 16" Barrel Medium Chrome Lined/Phosphate 5.56x

$20 off $200+. Use code SEPT20

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup.These barrels machined by Faxon, fit early... ... more

Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 16" Barrel Medium Chrome Lined/Phosphate 5.56x

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup.These barrels machined by Faxon, fit early...

$329.99

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Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 13.7" Barrel Medium Chrome Lined/Phosphate 5.5

Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 13.7" Barrel Medium Chrome Lined/Phosphate 5.5

$20 off $200+. Use code SEPT20

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup.These barrels machined by Faxon, fit early... ... more

Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 13.7" Barrel Medium Chrome Lined/Phosphate 5.5

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup.These barrels machined by Faxon, fit early...

$329.99

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Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 10.4" Barrel Medium Chrome Lined/Phosphate 5.5

Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 10.4" Barrel Medium Chrome Lined/Phosphate 5.5

$20 off $200+. Use code SEPT20

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup.These barrels machined by Faxon, fit early... ... more

Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 10.4" Barrel Medium Chrome Lined/Phosphate 5.5

Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup.These barrels machined by Faxon, fit early...

$329.99

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Brownells Brn-4 Assembled Upper Receivers - Brn-4 10.4" Assembled Upper Receiver Medium Barrel

Brownells Brn-4 Assembled Upper Receivers - Brn-4 10.4" Assembled Upper Receiver Medium Barrel

$130 off $1000+. Use code SEPT130

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device,... ... more

Brownells Brn-4 Assembled Upper Receivers - Brn-4 10.4" Assembled Upper Receiver Medium Barrel

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device,...

$1,199.00

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Brownells Brn-4� Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 13.7" Chrome Lined Asse

Brownells Brn-4� Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 13.7" Chrome Lined Asse

$130 off $1000+. Use code SEPT130

Assembled from All New Components Now with Chrome Lined Barrels The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle... ... more

Brownells Brn-4� Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 13.7" Chrome Lined Asse

Assembled from All New Components Now with Chrome Lined Barrels The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle...

$1,249.00

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Brownells Brn-4� Firing Pin Spring - Brn-4 Firing Pin Spring

Brownells Brn-4� Firing Pin Spring - Brn-4 Firing Pin Spring

Replacement or spare part for the BRN-4 Bolt Carrier Group. Handy to have on-hand for a backup parts kit. Only fits Brownells BRN-4 Bolt Carrier Group. Mfg: Brownells ... more

Brownells Brn-4� Firing Pin Spring - Brn-4 Firing Pin Spring

Replacement or spare part for the BRN-4 Bolt Carrier Group. Handy to have on-hand for a backup parts kit. Only fits Brownells BRN-4 Bolt Carrier Group. Mfg: Brownells

$4.99

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