Del-Ton Incorporated is a manufacturer of high-quality AR-15 style rifles located in Elizabethtown, North Carolina. Del-Ton rifles use all American-made parts and only the finest components. Del-Ton's Sierra 316H stands out from cheap AR clones with a 16" chrome-moly vanadium heavy barrel with M4 feed ramps, an A2 flash hider, a threaded muzzle, and a manganese phosphate protective finish. The Carpenter 158 bolt is HPT/MPI tested with a chrome-lined carrier interior. Every Sierra has a forged 7075 T6 aluminum upper receiver with M4 feed ramps, an ejection port cover, and round forward assist. The forged 7075 T6 aluminum lower is hard coat anodized and fitted with an aluminum trigger guard and catch button. The reinforced fiber buttstock has a mil-spec buffer tube and is 5-position adjustable for comfort. Aluminum delta ring. Single heat shield. 30-round magazine and gun lock included.