Primary Weapons Systems MK1 Mod 1 Stabilizing Brace .223 Wylde 5.56 NATO Black Pistol

Description

Product Overview

The Primary Weapons Systems MK1 Mod 1 is a compact AR-style semi-automatic pistol chambered in .223 Wylde and compatible with 5.56 NATO ammunition. Its 11.85-inch barrel uses a 1:8 twist and a 1/2x28 threaded muzzle, while the short-stroke piston operating system provides a clean-running alternative to direct-impingement designs. The black aluminum receiver set includes a full-length top Picatinny rail for mounting an optic and comes configured with a BCM pistol grip, stabilizing brace, and 30-round magazine capacity.

Key Features

• .223 Wylde chamber supports both .223 Remington and 5.56 NATO ammunition
• 11.85-inch barrel with a 1:8 twist for versatile bullet stabilization
• Short-stroke piston system helps keep fouling out of the receiver
• 1/2x28 threaded muzzle supports compatible muzzle devices and suppressors
• Full-length Picatinny top rail provides a solid platform for an optic
• Stabilizing brace and BCM pistol grip support controlled handling

The MK1 Mod 1 combines a compact braced-pistol configuration with flexible .223 Wylde and 5.56 NATO compatibility for range and defensive applications.