Technical Specifications Stock: Magpul Black Synthetic, Collapsible Front Sight: Magpul Mbus Rear Sight: Magpul Mbus Barrel Length: 18" Thread Pattern: 1/2"-28 Twist: 1:8" RH Capacity: 30 Finish: Type III Hard Coat Anodized Height: 8" Weight: 6.8 lb. Overall Length: 35" - 38.25" Finish: Type III Hard Coat Anodized Length of Pull: 11.10" - 14.40"/li> Grooves: 5 Package Includes Ruger AR-556 5.56NATO Rifle Plano, weather-proof, hard, locking gun case 42", 2000 Lumen Olight Odin Flashlight with pressure switch, Magpul Mbus Sights Magpul Vertical Foregrip Magpul Type 2 rail covers Burris Fullfield 3-9X40mm Collapsible 6-position stock 45 degree Micro Green Dot Reflex Sight UTG M-LOK bipod Single-point/double-point, nylon sling 4x30-round magazine Magpul Gen 2 with Windows