Stag Arms Stag 15 M4 Left Hand 5.56 NATO 16" Upper Assembly

The Stag 15 M4 Upper offers the high quality, durable, military proven M4 design you've been looking for. Made to mil-spec standards, this upper satisfies the need for a standard GI carbine. Featuring a 5.56x45mm NATO chamber 16" 1/7 chrome lined barrel with a thermoplastic handguard and A2 birdcage flash hider. This upper half does not include a BCG or Charging Handle. 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: None Gas System: Carbine Length with A2 Front Post Charging Handle: None