"Expect sleek looks and smooth shooting from the Diamondback Firearms DB10 Semi-Auto Rifle. It has a A3 flattop forged 7075 T-6 Aluminum upper receiver and forged 7075 T-6 aluminum Diamondback Black Gold lower receiver with enhanced skeletonized trigger guard. The 416 stainless steel fluted barrel comes threaded 5/8 x 24 to accept included flash hider. Diamondback DB10 semi-auto rifle also comes equipped with shot-peened mil-spec 8620 bolt carrier, adjustable Magpul CTR stock, 15"" M-LOK (V-rail) handguard with anti-slip texture pads, and MOE K2 grip. A3 flattop forged 7075 T-6 Aluminum upper receiver Forged 7075 T-6 aluminum Diamondback Black Gold lower receiver Enhanced skeletonized trigger guard 416 stainless steel fluted barrel Flash hider Shot-peened mil-spec 8620 bolt carrier Adjustable Magpul CTR stock 15"" M-LOK (V-rail) handguard MOE K2 grip"