The Alexander Arms AR-15 Upper Receiver Build Kit is the perfect kit for anyone wanting to create a one-of-a-kind AR-15. The Upper Receiver Built Kit comes with key components such as a complete upper receiver, charging handle, gas block, 11.5" threaded barrel and complete bolt carrier group with bolt. Chambered in 6.5 Grendel, this upper receiver kit squeezes 6.5x39 caliber firepower into a standard AR-sized envelope, offering shooters an immense step up in power compared to a traditional 223 Remington. This Upper Receiver Kit is an excellent choice for a do-it-yourselfer who enjoys custom work and mix-and-matching components to find out what works for them. The upper receiver kit works great for close-to medium-range hunting or home defense with its 11.5" barrel for tight spaces, and reasonably light weight construction. The upper receiver assembly features a forged 7075-T6 aluminum flat-top receiver matte black finish.
Thread protector not included.
- Mil-Spec flat top upper receiver (port door and forward assist installed)
- 11.5" 416R Stainless Steel Barrel with 1:7.5" Twist, Bead Blasted Finish
- Threaded 5/8-24 RH
- Complete bolt carrier and 6.5 Grendel Bolt
- Carbine Length Gas tube
- Mil-Spec charging handle