Stag 15 Retro Rifles are the high quality durable military proven A2 rifle you've been looking for. Made to mil-spec standards with a removable A3 carry handle A2 buttstock with trap door for storage and an 11.5 thermoplastic handguard with double heat shields. - The Stag 15 Retro Rifle features a 5.56x45mm NATO chamber 20 1/8 chrome-lined barrel A2 birdcage flash hider mil-spec charging handle and a mil-spec manganese phosphate coated M16 BCG. - Every complete rifle from Stag Arms comes with a Transferable Lifetime Warranty an Infinite Shot Barrel Guarantee a magazine and a rifle case. - Weight: 8.5 lbs - Length: 39.75 - Action: Semi-Auto Direct Impingement - Caliber: 5.56 NATO / .223 - Twist Rate: 1/8 Button Rifled - Muzzle Device: A2 Birdcage Flash Hider - Barrel: 20 4140 Steel Chrome-Lined Heavy Profile Manganese Phosphate Coated - Handguard: Thermoplastic with Double Heat Shields - Receiver Material: Forged and Mil-Spec 7075 T6 Aluminum with Type 3 Hard Coat Anodizing - Bolt Carrier: Mil-Spec Manganese Phosphate coated M16 BCG - Gas System: Rifle Length with A2 Front Post - Charging Handle: Standard Mil-Spec - Front Sight: F-marked A2 Front Sight and Bayonet Lug - Rear Sight: Removable A3 Carry Handle with Integrated Sight - Buttstock: A2 Buttstock with Trap Door For Storage - Buffer: A2 Buffer with A2 Action Spring - Trigger: Mil-Spec Single Stage Trigger - Grip: A2 Style Grip - Magazine: 20rd - Safety Selector: Right Hand