The Stag 15 M4 Rifle is the high quality durable military proven M4 design rifle you’ve been looking for. Made to mil-spec standards this rifle satisfies the need for a standard GI carbine. – The Stag 15 M4 features a 5.56x45mm NATO chamber 16 1/7 chrome lined barrel with a thermoplastic handguard a Magpul MOE trigger guard a six position buttstock A2 birdcage flash hider and a mil-spec manganese phosphate coated M16 BCG. – Every complete AR15 rifle from Stag Arms comes with a Transferable Lifetime Warranty an Infinite Shot Barrel Guarantee and a magazine. – Weight: 6.75 lbs – Length: 32.25 collapsed 35.5 extended – Action: Semi-Auto Direct Impingement – Caliber: 5.56 NATO/.223 – Twist Rate: 1/7 Button Rifled – Muzzle Device: A2 Flash Hider – Barrel: 16 4150 Steel Chrome Lined Government 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: Carbine 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: Mil-Spec 6 Position – Buffer: Heavy Buffer and Spring – Trigger: Mil-Spec Single Stage Trigger w/ MOE Trigger Guard – Grip: A2 Style Plastic Grip – Magazine: 30rd – Safety Selector: Right Hand