Primary Weapons MK1-M1U-223-11 MK1 Mod 1-M Upper 223 Wylde 11.85" Black Anodized Barrel for AR-15

Primary Weapons MK1-M1U-223-11: The MK111 MOD 1-M Upper is equipped with the renowned PWS long-stroke piston system maintaining the reliability that PWS owners have come to trust. This upper features a free-float M-LOK handguard and forward assist controls, with a design closer to mil-spec standards suitable for civilians and law enforcement alike. It employs fully forged upper and lower receivers and is designed to deliver high value and reliable performance. Highlights include a .223 Wylde chambering suitable for both .223 Remington and 5.56mm NATO, a threaded barrel for muzzle devices, and a free-float M-LOK handguard for accessory mounting. The receiver is forged from 7075-T651 Aluminum for durability and mil-spec compatibility. This upper is intended for AR-15 platforms and includes a threaded barrel feature.