Features:Stag 15 O.R.C. (Optics Ready Carbine) Rifles feature Stag's high quality and long-lasting durability standards outfitted with standard GI carbine furniture.The Stag 15 O.R.C. features a 5.56x45mm NATO chamber 16" 1/7 chrome lined barrel with a thermoplastic handguard mil-spec stock A2 birdcage flash hider and a mil-spec manganese phosphate coated M16 BCG.Specifications: Weight: 6.5 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 Handguard 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 Railed Gas Block Charging Handle: Standard Mil-Spec Buttstock: Mil-Spec 6 Position Stock Buffer: Standard Carbine Buffer and Spring Trigger: Mil-Spec Single Stage Trigger Grip: Mil-Spec Pistol Grip Magazine: 30rd PMAG Safety Selector: Right Hand SKU: STAG800010