Stag Arms Model 4

Action: Semi-auto direct impingement. Chamber: 5.56 NATO. This rifle will also shoot .223. Twist Rate: 1/9 button rifled. Muzzle Device: A2 flash hider (Stag Arms Compensator on post ban models). Barrel: 20", 4140 steel, chrome-moly, heavy profile, manganese phosphate coated. Handguard: Thermoplastic with double heat shields. Upper Receiver: Forged and mil-spec 7075 T6 aluminum with type 3 hard coat anodizing and a picatinny rail on top. Bolt Carrier: Enhanced semi-auto with a manganese phosphate coating. Charging Handle: Standard mil-spec. Front Sight: F-marked A2 front sight, side sling swivel, and bayonet lug (no bayonet lug on post ban models). Rear Sight: Removable A3 carry handle with integrated sight. Lower Receiver Material: 7075 T6 aluminum with a type 3 hard coat anodizing. Hammer/Trigger pin size: Mil-spec small pin .154. Pivot/Takedown Pin Size: Mil-spec small pin - .250". Caliber Marking: 5.56 NATO. Buttstock: A2 buttstock with trap door for storage. Buffer: A2 buffer with A2 action spring. Trigger: Mil-spec single stage trigger with a non-adjustable 5-8 pound trigger pull. Grip: A2 style plastic grip. Magazine: 30rd (Post-ban versions will have a 10rd magazine). Safety Selector: Right Hand