RISE Armament AR-15 5.56 Bolt Carrier Group

The RISE Armament® AR-15 5.56 Bolt Carrier Group (BCG) is manufactured with precision and individually MPI tested to help ensure long-lasting durability and reliable field use. This BCG features a heat treated and case hardened 8620 tool steel construction carrier with a corrosion-resistant and easy-to-clean nitride finish for superior strength and smooth and reliable function while the 9310 MPI tested bolt works with the extractor to help ensures each round is properly seated into place. What’s more, the gas key boasts tool steel construction with grade 8 hardened fasteners that are staked properly to help ensure proper cycling every time you pull the trigger. Further, the 4140 steel cam pin and shot peened tool steel extractor round out this BCG and ensure safe and proper function when shooting your favorite rifle. Backed by a lifetime warranty from RISE Armament. Made in USA.