Using the proven system originally designed for the MK107, the MK112 uses a mid length gas piston system and a Wydle chamber that allows it to easily fire both 5.56 and .223 ammunition with no change in accuracy. The operating system, designed after the venerable AK-47, features a long stroke fixed operating rod design with an adjustable gas block, 15” handguard and free-floated barrel.
The handguard features the VLTOR KeyMod System which comes standard with two 2” sections of 1913 rail as well as a continuous 1913 top rail.
|PWS Forged Mil-Spec Upper|
|PWS Stainless Isonite Treated 1:8 Twist Barrel|
|PWS Enhanced Bolt Carrier Group|
|PWS KeyMod Rail System|
|BCMGUNFIGHTER Charging Handle|
|Manufacturer||Primary Weapons Systems|
|Caliber||.223 / 5.56|
|Barrel Length (in)||12"|
|Rifling||1 in 8"|
|Additional Info||All NFA Rules Apply. Mounting this on a rifle lower will create a short barrel rifle. It is fine to use on a pistol lower.|