Primary Weapons Systems MK111 MOD 1-M LOWER SBR RIFLE .223 Wylde 11.85"

The MK1 MOD 1-M line features the PWS long stroke piston system. Internally, this line offers the tried and true system that PWS owners have grown to know and love. Featuring a free-float MLOK handguard, forward assist controls, and a more true to mil-spec design, the MK1 MOD 1-M line is a go-to for not only civilians, but also Law Enforcement. With the fully forged upper and lower receivers, the MK1 MOD 1-M is a no-nonsense tool for when you need a high value option that is relentless and unstoppable.

What PWS-aficionado’s refer to as the “ideal rifle”, the MK111 MOD 1-M is perfect for shooters looking for a weapon with endless uses. Maintaining the shortest barrel length recommended for suppressed use, this compact rifle is one of the most popular from LE to heli-hunting. 

MK111 MOD 1-M Specs:

Barrel Length: 11.85"

Caliber: .223 Wylde

Weight: 6 lb. 5 oz.

Length: 28.5-32.0"

Piston System: Carbine

Velocity: 2741 ft/sec

MK111 MOD 1-M Features:

PWS long stroke piston operating system

3-setting adjustable gas system

Forged upper and lower receivers

Included forward assist

Triad556 compensator

MLOK free float handguard

1:8 barrel twist rate

Bravo Company furniture

Radian Raptor Charging Handle