Caliber: .224 Valkyrie - Action: Semi-Automatic Gas Impingement System - Capacity: 5 +1 – Ships with one 5 Round Magazine - Safety: Manual Lever with Indicator Markings on Both Sides of Receiver - Receiver: Flat Top Type Upper Receiver with Laser Engraved Caliber - Receiver Material: Forged 7075 T6 Aircraft Aluminum with Aluminum Trigger Guard - Receiver Finish: Hardcoat Black Anodize Finish - Bolt Material:Carpenter 158 Steel - Barrel: 22 Fluted – Threaded (1/2 x 28 T.P.I.) for various muzzle devices. Inc. muzzle protector. - Barrel Material: 416R Stainless Steel - Rifling: 1 in 7 – Right Hand Twist - Stock: Luth-AR Buttstock with adjustable buttplate and cheekrest - Forend: Windham Weaponry 15 Free-Float Forend - Pistol Grip: Hogue Overmolded Beavertail Grip - Rear Sight: None – Ready for optics or other type accessory sights - Front Sight: None – Ready for accessory sights on Railed Forend - Weight: 8.7 lbs. without magazine - Length: 40.25 - Packaging: Hard Plastic Gun Case with Black Web Sling & Operators Manual