Stern Defense

Stern Defense 002SDHG15 15" Aircraft Grade Aluminum Anodized Receiver for AR15. This complete upper features Brand: Stern Defense; Barrel Length: 15.000 in; Finish: Anodized.

Stern Defense 00645ACPBARREL105INCHD is a 10.50 inch 45 ACP barrel made from black Melonite 4150 chrome moly steel. It features a 1:16 rate of twist and is threaded .578-28, compatible with AR-15...

The Stern Defense H2S Drop-In Trigger delivers precision and reliability for both AR15 and AR10 platforms with its smooth, consistent pull and aluminum construction. Engineered as a true drop-in...

Stern Defense 015SD10INCHMOD5MLOK855 features an 8.5 inch black Melonite treated 9mm barrel, a 7075-T6 aluminum receiver anodized for durability, and is equipped with a 10 inch M-LOK rail system...

STERN 004-SD BU9-NIB-ECHO-D2-M

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...

STERN 001-SD MAG-ADD-FLARE. This magazine features Brand: Stern Defense; Material: Delrin; Series: Mag-AD.

Stern Defense 15 inch M-LOK rail (Barrel nut, bolts etc.), Stern Defense 16.1 inch 9mm barrel with SCB 9 compensator break. Assembled upper receiver with dust cover, forward assist, SD BU9 Glock cut...

Made with 8620 AISI steel and boasting a Mag-Phosphate finish, this Stern Defense bolt fits into Mil-Spec and Glock-pattern upper receivers. It functions with Colt SMG and Glock magazines, and is...

Build a dedicated .45 ACP AR upper with this Stern Defense Mod 5 M-LOK upper assembly featuring a 6-inch Black Melonite-finished barrel and an anodized, mil-spec flat-top upper receiver. The...

The Mag-AD .45ACP Adapter from Stern Defense converts a standard mil-spec AR-15, M4, or M16 lower assembly to accept .45ACP M&P magazines. It installs quickly, features a last round hold open feature...

Stern Defense 015SD15INCHMOD5MLOK161 is a 45 ACP complete upper featuring a 16.10 inch black Melonite treated barrel and a durable 7075-T6 Aluminum anodized receiver. It includes a 15 inch M-LOK...

Mil-Spec flat top upper receiver with Stern Defense laser engraved dust cover and forward assist. Machined from 7075-t6 aluminum and hard-coat anodized. Mil-spec dry film lube in the bore.

Stern Defense 002SDHG8 MOD4 8" Aircraft Grade Aluminum Anodized Receiver. This complete upper features Brand: Stern Defense; Model: MOD4; Barrel Length: 8.000 in; Finish: Anodized.

The Stern Defense 00645ACPBARREL161INCHD is a 16.1-inch AR-15 barrel chambered in .45 ACP. It is machined from 4150 chrome-moly steel and finished with a durable Melonite coating for enhanced...

To detach, push the button and twist counter-clockwise 30 degrees.The buttstock will then be separated from the firearm. To re-attach, align the two pieces, push in and turn clockwise 30 degrees. The...

M16 9MM BOLT FOR GLOCK AND COLT

The Mag-AD 9mm / .40 S&W Glock Magazine Adapter is Stern Defense’s flagship product. It converts a standard mil-spec AR-15, M4, or M16 lower assembly to accept Glock 9mm and .40 S&W magazines. Made...

The Stern Defense Rapid Attach Mini Buttstock Adapter (RAB-AD) lets you quickly detach and reattach your buttstock with a simple push-button and 30-degree twist. Built with a robust 7075 aluminum...

The Rapid Attach Buttstock Adapter for Pic Rail (RAB-AD Pic Rail) is a compact, no-modification-required solution for reducing the length of your firearm for easy transport and storage. This...

Stern Defense 001MAGADEJECTORREPLACE Ejector Replacement Kit Mag-AD Silver. This magazine features Brand: Stern Defense; Model: Ejector Replacement Kit; Series: Mag-AD.

Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W M&P and P320/P250 magazines. The Mag-AD series adapters install in seconds. Boasting a last round hold open feature...

Stern Defense 015SD4INCHMOD4MLOK4INC 9mm. This complete upper features Brand: Stern Defense; Material: 4150 Chrome Moly Steel; Twist Rate: 10.000.