*This upper has a pin/welded muzzle device, and is able to be used as a rifle upper.
The PWS MK1 MOD 1-M line features the PWS long stroke piston system and is favored for it’s extremely robust nature. Internally, this line offers the tried and true system that PWS owners have grown to know and love. Featuring a free float 13.624″ M-LOK® handguard, forward assist, 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.
The MK114 Mod 1 upper has a 14.5″ 4150 CMV barrel with a mid length long stroke piston. It comes with a complete bolt carrier group, Radian/PWS Raptor charging handle, and a pin and welded FSC 556 Compensator. This MK114 Mod 1 upper is ready to slap on your lower of choice. Will fit and align with most spec AR-15 lower offerings.
Caliber: .223 Wylde
Weight: 4lbs 8oz
Length: 23 7/8″
FOR MORE INFORMATION LIKE A COMPLETE BREAK DOWN OF UPPER OFFERINGS, PLEASE CLICK ON THE “ADDITIONAL INFO” TAB
Every 5.56 model is chambered in .223 Wylde. This means you can safely shoot 5.56 NATO or .223 Remington ammunition.