The Del-Ton 316H is a semi-automatic AR-15 rifle chambered in 5.56x45mm (5.56 NATO). It features a manganese phosphated chrome moly vanadium heavy contour 16 barrel with threaded muzzle and standard A2 flash finder mil-spec phosphated 8620 steel carrier assembly Carpenter 158 bolt chrome lined carrier interior carbine length handguards mil-spec hard coat anodized forged 7075 T6 aluminum upper and lower receivers aluminum trigger guard A2 pistol grip and M4 five position buttstock. This rifles upper receiver sports M4 feed ramps flat top and right-hand ejection port. Details The Echo 316L Optics ready has a 16 light weight melonite barrel with a low profile gas block 1x9 twist MilSpec M4 stock CAR handguards with single heat shields and A2 flash hider. The Echo 316L Optics Ready comes with 1x 30rd magazine and a CA approved Gun Lock. Shipped with a Chamber Safety Tool in the chamber clearly showing the weapon is unloaded. - Barrel - 4140 Melonite Steel - 16 Length 1x9 Twist - Carbine Gas System - Threaded Muzzle A2 Flash Hider - Manganese Phosphated - Melonite under DTI Low Profile Gas Block - Lightweight Profile - Chamber 5.56 x 45mm - Bolt Carrier - Phosphated 8620 Steel Carrier Assembly - Carpenter 158 Bolt - Heat Treated and Plated - Mil-Spec - Chrome Lined Carrier Interior - Carrier Key - Chrome Lined attached with Grade 8 Screws - Properly Staked Sealed Gas Key - Handguards 0 Carbine Length - Aluminum Delta Ring - Single Heat Shield - Upper Receiver - Forged 7075 T6 Aluminum - A3 Flat Top w White T-Marks - Hard Coat Anodized - Bores Surface is coated with dry film lube over anodized surface - Mil-Spec - Ejection Port Cover and Round Forward Assist - Right Hand Ejection - Lower Receiver - Forged 7075 T6 Aluminum - Hard Coat Anodized - Mil-Spec - Mag Catch Button - Semi-Auto - A2 Grip - Buttstock - MilSpec M4 Buttstock - MilSpec Buffer Tube - Carbine Buffer - Included - 1 x 30rd Magazine - Chamber Flag - Gun Lock - Weight 5.8 lbs. Empty - Length - 36.375 Fully Extended - 32.625 Collapsed BLACK FINISH