Developed with attention to component fit and workflow efficiency, the Primary Weapons MK114 MOD 2-M 223 Wylde 14.5'' BBL Complete Upper Thread Only supports smooth handling and consistent mechanical behavior. Ideal for range training and recreational shooting, this upper receiver offers reliable performance with its PWS Long Stroke Piston System and 3-setting adjustable gas system. Primary Weapons is known for its innovative designs and commitment to quality.\n\nKey Features:\n- Manufacturer: Primary Weapons\n- Model: MK114 MOD 2-M\n- Caliber: .223 Wylde\n- Barrel Length: 14.5"\n- Action: PWS Long Stroke Piston System\n- Gas System: Mid-Length\n- Barrel Twist Rate: 1:8\n- Muzzle Device: PWS FSC 556\n- Handguard: PWS PicLok™ 13.574”\n- Charging Handle: Radian Raptor™ Ambidextrous\n- Weight: 4.3 lbs\n- Length: 23.5"