stern defense sd 40sw ar

Stern Defense SD 8.5in MOD5 .40SW Upper Receiver Assembly 10in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD10INMD5ML8.5INBR40SWKK

Stern Defense SD 8.5in MOD5 .40SW Upper Receiver Assembly 10in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD10INMD5ML8.5INBR40SWKK. The free float MLOK handguard from Stern Defense offers excellent ergonomics while remaining lightweight and... more

Stern Defense Ar-15 Sd Mod 5 9mm Upper Receivers M-Lok Complete - Sd Mod 5 9mm Upper Receiver 8.5in

The Stern Defense SD Mod 5 9mm Upper Receivers are unique with handguards that extend beyond the end of the barrels. The 8.5" barreled upper has a 10" M-LOK free float handguard, and the 6" barreled upper has an 8" M-LOK free float handguard. To bring... more

Stern Defense Ar-15 Sd Mod 4 9mm Upper Receiver 4in M-Lok Complete - Sd Mod 4 9mm Upper Receiver 4in

The Stern Defense SD Mod 4 9mm Upper Receiver is a complete, ready to go, upper receiver solution for those looking to spend less time building and more time shooting. The 4 inch, 1-10 twist, Melonited barrel, is free float in a 4in M-LOK handguard... more

Stern Defense Ar-15 Sd Mod 4 9mm Upper Receiver M-Lok Complete - Sd Mod 4 9mm Upper Receiver 16.1in

The Stern Defense SD Mod 4 9mm Upper Receiver is a complete, ready to go, upper receiver solution for those looking to spend less time building and more time shooting. The 16.1 inch, 1-10 twist, Melonited barrel, is free float in a 12in M-LOK handguard... more

Stern Defense SD 4in MOD4 .40SW Upper Receiver Assembly 4in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD4INMD4ML4INBR40SWKK

Stern Defense SD 4in MOD4 .40SW Upper Receiver Assembly 4in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD4INMD4ML4INBR40SWKK. The free float Mlok handguard from Stern Defense offers excellent ergonomics while remaining lightweight and strong.... more

Stern Defense SD BU9 NiB ECHO Bolt Carrier AR-15 Glock-Pattern Upper Receiver 9mm Sliver 004-SD BU9-NiB-ECHO-D2-M

Stern Defense SD BU9 NiB ECHO Bolt Carrier AR-15 Glock-Pattern Upper Receiver 9mm Sliver 004-SD BU9-NiB-ECHO-D2-M. Here ya go Made with 8620 AISI steel and boasting a Nickel Boron Melonite hybrid finish the Stern bolt fits into Mil-Spec and... more

Stern Defense SD AR15 Barrel 9mm 105in Black BRL05INCHDA

Stern Defense SD AR15 Barrel 9mm 105in Black BRL05INCHDA. Our barrels offer an advantage over the competition. Every stern defense barrel throat is machined deeper for a longer free bore to accommodate bullets with a longer ogive. We have found that... more

Stern Defense SD MOD4 M-Lok Handguards 8in Black 002-SD HG8 MOD4-M

Stern Defense SD MOD4 M-Lok Handguards 8in Black 002-SD HG8 MOD4-M. This handguard is M-LOK compatible to accept your favorite attachments. Features a secure clamp on mounting system that ensures that the handguard remains in place even under heavy... more

Stern Defense SD 4in MOD4 MLOK .45ACP Upper Receiver Assembly 4in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD4INMD4ML4INBR45ACPKK

Stern Defense SD 4in MOD4 MLOK .45ACP Upper Receiver Assembly 4in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD4INMD4ML4INBR45ACPKK. The free float M-LOK handguard from Stern Defense offers excellent ergonomics while remaining lightweight and... more

Stern Defense SD 6in MOD5 MLOK .45ACP Upper Receiver Assembly 8in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD8INMD5ML6INBR45ACPKK

Stern Defense SD 6in MOD5 MLOK .45ACP Upper Receiver Assembly 8in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD8INMD5ML6INBR45ACPKK. The free float M-LOKhandguard from Stern Defense offers excellent ergonomics while remaining lightweight and... more

Stern Defense SD AR15 Barrel .45acp 16.1in Black ACPBRLINCHD2

Stern Defense SD AR15 Barrel .45acp 16.1in Black ACPBRLINCHD2. Our barrels offer an advantage over the competition. Every stern defense barrel throat is machined deeper for a longer free bore to accommodate bullets with a longer ogive. We have found... more

Stern Defense SD BU40 Bolt Carrier for AR15/M16 Black 004-SD BU40-D2-M

Stern Defense SD BU40 Bolt Carrier for AR15/M16 Black 004-SD BU40-D2-M. These Bolt Carrier Groups made by Stern Defense are built out of 8620 AISI steel and Mag-Phosphate finished to ensure a strong reliable part that will withstand repeated firings... more

Stern Defense SD AR15 Barrel 9mm 161in Black BRLINCHD2

Stern Defense SD AR15 Barrel 9mm 161in Black BRLINCHD2. Our barrels offer an advantage over the competition. Every stern defense barrel throat is machined deeper for a longer free bore to accommodate bullets with a longer ogive. We have found that some... more

DEMO Stern Defense MAG-ADMP9&40/P320 AR-15/M4/M16 Magazine Conversion Adapter M&P 9mm/.40S&W Black 001-SD MAG-AD-9AND40-M

DEMO Stern Defense MAG-ADMP9&40/P320 AR-15/M4/M16 Magazine Conversion Adapter M&P 9mm/.40S&W Black 001-SD MAG-AD-9AND40-M. 40 S&W M&P and P320/P250 Magazines The Mag-AD series adapters install in seconds. Boasting a last round hold open feature making... more

Stern Defense SD FH9 MOD1 Muzzle Device Black 03-SD FH9-MOD1-M

Stern Defense SD FH9 MOD1 Muzzle Device Black 03-SD FH9-MOD1-M. Manufactured to the highest quality standards right here in the U.S.A. Full auto tested to ensure reliability and function under sustained fire. The helical right handed 1:6 twist design... more

Stern Defense RAB-AD Series Rapid Attach Buttstock Adapter Black 008-SD RAB-AD-D1-M

Stern Defense RAB-AD Series Rapid Attach Buttstock Adapter Black 008-SD RAB-AD-D1-M. These AR15 Stocks allow you to quickly attach and detach the buttstock of your rifle drastically altering the overall length. You can use the Stern Defense RAB-AD... more

Stern Defense SD MOD5 M-lok Handguards 8in Black 002-SD HG8 MOD5-M

Stern Defense SD MOD5 M-lok Handguards 8in Black 002-SD HG8 MOD5-M. This rail by Stern Defense utilizes M-LOK technology and features the "Insert now Attach Later" feature. The benefits of a short rail are that you get a very slim profile and greater... more

Stern Defense SD RBC45 Muzzle Device Black 003-SD RBC45-D1-M

Stern Defense SD RBC45 Muzzle Device Black 003-SD RBC45-D1-M. Which is especially helpful on short barreled rifles and pistols. Machined from 6061 aircraft grade aluminum billet and hardcoat anodized. 3.25 inches long and 1.2 inches in diameter.... more

Stern Defense Ar-15 Sd Mod 5 9mm Upper Receivers M-Lok Complete - Sd Mod 5 9mm Upper Receiver 6in M-

The Stern Defense SD Mod 5 9mm Upper Receivers are unique with handguards that extend beyond the end of the barrels. The 8.5" barreled upper has a 10" M-LOK free float handguard, and the 6" barreled upper has an 8" M-LOK free float handguard. To bring... more

Stern Defense RAB-AD Rapid Attach Buttstock Adapter for Pic Rail Black 008-SD RAB-AD-PIC RAIL-D1-M

Stern Defense RAB-AD Rapid Attach Buttstock Adapter for Pic Rail Black 008-SD RAB-AD-PIC RAIL-D1-M. It allows for the attachment and removal of your buttstock or pistol brace in seconds. To detach pull the bottom release taband twist counter-clockwise... more

Stern Defense Ar-15 Sd-Bu45 Bolt Carrier .45acp Black

Having a .45 ACP pistol-caliber carbine requires the use of a bolt that's designed to provide reliable operation with the round, and the Stern Defense AR-15 SD-BU45 Bolt Carrier is purpose-built to provide the reliable, dependable, durable operation... more

Stern Defense RAB-AD Male Assembly Black 008-SD RAB-AD MALE-D2-M

Stern Defense RAB-AD Male Assembly Black 008-SD RAB-AD MALE-D2-M. 6 oz Features of Stern Defense RAB-AD Male Assembly Steel internals Hard coat anodized for maximum wear protection Buffer retainer to keep the buffer weight in the tube while... more

Stern Defense Ar-15 H2s Hybrid Triggers Drop-In 2-Stage - H2s Hybrid Trigger Drop-In 2 Stage Nickle

Designed with today's popular pistol-caliber carbines in mind, the Stern Defense H2S Hybrid 2-Stage Trigger is purpose-built for use in the AR platform. This unique trigger design blends features from dependable mil-spec trigger units and finely tuned... more

Stern Defense Ar-15 M&P 45acp Conversion Adapter - Ar-15 Conversion Adapter For S&W .45acp Magazines

Many of today's pistol-caliber carbine fans are taking advantage of 9mm, but there's a subset of PCC fans that want a harder-hitting pistol caliber for their carbine. Enter the .45 ACP AR-15 M&P Conversion Adapter from Stern Defense. Designed for use... more

Stern Defense Ar-15 9mm Conversion Adapter - Ar-15 9mm Conversion Adapter For S&W M&P/Sig 320 Magazi

There's no need to go with a pistol-caliber specific AR lower on your next pistol-caliber carbine build. With the Stern Defense AR-15 9mm Conversion Adapter you have the ability to utilize popular pistol magazines which you may already have a supply... more

Stern Defense Ar-15 9mm Conversion Adapter - Ar-15 9mm Coversion Adapter For Beretta 92 Magazines

There's no need to go with a pistol-caliber specific AR lower on your next pistol-caliber carbine build. With the Stern Defense AR-15 9mm Conversion Adapter you have the ability to utilize popular pistol magazines which you may already have a supply... more

Stern Defense Ar-15 Gen 2 Bolt Carrier For Glock & Colt .40s&W

Made with 8620 AISI steel and boasting a Manganese Phosphate finish, the Stern bolt fits into Mil-Spec and Glock-pattern upper receivers. It functions with Colt SMG, Glock magazines and it's fully compatible with standard AR15/M16 charging handles.... more

Stern Defense Ar-15 H2s Hybrid Triggers Drop-In 2-Stage - H2s Hybrid Trigger Drop-In 2 Stage

Designed with today's popular pistol-caliber carbines in mind, the Stern Defense H2S Hybrid 2-Stage Trigger is purpose-built for use in the AR platform. This unique trigger design blends features from dependable mil-spec trigger units and finely tuned... more

Stern Defense Ar-15 9mm Mag-Ad Flared Magwell - Mag-Ad Flare Mod1 Magwell 9mm Black

The Stern Defense MAG-AD Flare Mod1 magwell is designed to attach to a Mil-Spec forged lower receiver when using the Stern Defense MAG-AD9 or MAG-ADMP9&40 conversion adapters. Made from Black Delrin 9mm Manufactured in the U.S.A. from black Delrin, the... more

Stern Defense Ar-15 9mm Bolt For Glock And Colt - 9mm Complete Bolt Black Semi Auto Only

Today's pistol-caliber carbines are all the rage, and many of these PCCs are based on the popular AR-15 platform. Stern Defense answered the call for a dedicated bolt designed for these 9mm AR-15s. The Stern Defense 9mm AR-15 Bolt, designed for use... more

Stern Defense SD AR15 Barrel 9mm 6in Black BRLINCHD1

Stern Defense SD AR15 Barrel 9mm 6in Black BRLINCHD1. Our barrels offer an advantage over the competition. Every stern defense barrel throat is machined deeper for a longer free bore to accommodate bullets with a longer ogive. We have found that some... more