One Horse LLC

Dominate close-quarters scenarios with this 10.5" 5.56 NATO Complete Upper Receiver. Featuring a 10.5" barrel with a 1:7 twist rate this upper delivers reliable bullet stabilization for a wide range of 5.56 NATO ammunition ideal for tactical home defense or short-barreled rifle (SBR) and pistol builds. The 10" M-Lok rail provides a lightweight modular platform for mounting accessories while the nitride-finished bolt carrier group ensures smooth cycling enhanced durability and low maintenance. Complete with a charging handle and built to Mil-Spec standards this upper is ready to pair with any AR15 Mil-Spec lower receiver for a seamless high-performance setup. - Caliber: 5.56mm NATO - Barrel Profile: Medium - Muzzle Thread: 1/2X28 - Twist Rate: 1/7 - Gas System: Pistol - Material: 4150 - Handguard Length: 10 in. - Charging Handle: Standard - Manufacturer: One Horse