PRIMARY WEAPONS SYSTEMS (PWS) MK107

PRIMARY WEAPONS SYSTEMS: MK107 MOD 1-M COMPLETE UPPERNEW OLD STOCKPWS Long-Stroke Piston System: Renowned for reliability and reduced fouling, featuring an adjustable 3-setting gas block for suppressed or unsuppressed operation.Barrel: "The Diablo" Configuration: 7.75-inch barrel length optimized for CQB (Close Quarters Battle) and designed for reliable suppressor use.Caliber: .223 Wylde Chambering: Offers superior accuracy with .223 Remington and 5.56 NATO ammo, featuring a 1:8 twist.PWS CQB Muzzle Device: Specifically designed to push concussion forward and reduce muzzle rise in compact setups.Free-Float M-LOK Handguard: 7.1-inch rail allowing for easy accessory mounting while keeping the profile slim.Forged 7075-T651 Receiver: Durable,,mil-spec style upper, often featuring a forward assist for added reliability in adverse conditions.Radian Raptor Charging Handle: Comes standard with the ambidextrous Radian Raptor charging handle