Primary Weapons Systems MK111 Pro Upper Upper 223 Wylde 556NATO 11.85" Black MLOK AR Rifles AR-15

The MK111 PRO Upper, features the PWS long stroke piston system. Internally, this line offers the tried and true system. Featuring a free-float MLOK handguard, with the fully forged upper. The MK111 Pro is a no-nonsense tool for when you need a high value option that is relentless and unstoppable.