PRIMARY WEAPONS SYSTEMS (PWS) MK111 PRO PISTOL

PRIMARY WEAPONS SYSTEMS: MK111 PRO COMPLETE UPPER 11.85"NEW OLD STOCKOperating System: PWS carbine-length long-stroke piston system for high reliability, cleaner operation, and reduced backpressure.Adjustable Gas System: 3-position adjustable gas regulator, allowing for easy tuning based on ammo and suppressor use.Barrel: 11.85-inch .223 Wylde chambered barrel (416R stainless steel, button rifled, 1:8 twist) capable of safely shooting both .223 Rem and 5.56 NATO with high accuracy.Upper Receiver: Proprietary 6061 aluminum slick-side extrusion, offering, durable design without a forward assist.Handguard: 11-inch PWS M-LOK free-float handguard for accessory attachment.Muzzle Device: Standard A2 Flash Hider.Charging Handle: Included Radian Raptor(TM) Ambidextrous Charging Handle.