Caliber: 9mm - Type: Rifle - Action: Semi-Automatic Blowback System - Capacity: 17 + 1 Ships with one 17-Round Magpul Magazine (accepts all Glock-compatible mags) - Safety: Manual Lever with Indicator Markings on Both Sides of Receiver - Receiver: Flat Top Type Upper Receiver with Laser Engraved Caliber - Receiver Material: Billet 7075 T6 Aircraft Aluminum with Integral Trigger Guard - Receiver Finish: Hardcoat Black Anodize Finish - Barrel: 16 (406.4mm) Melonite QPQ Finish with 1/2 x 28 T.P.I Thread Protector - Bolt Material: 8620 steel - Barrel Material: 4150 Chrome Moly Vanadium 11595E Steel with Melonite QPQ (Salt Bath Nitride) finish - Rifling: 1 in 10 (254mm) Right Hand Twist - Stock: 6-Position Telescoping Buttstock - Forend /: Windham Weaponry 13 (330.2mm) Free-Floating Handguard with 2 (50.8mm) Rail Section - Pistol Grip: A2 Black Plastic Grip - Rear Sight: None Ready for optics or other type accessory sights - Front Sight: None Ready for accessory sights on Railed Forend - Weight: 6.72 lbs. (3.04kg) Without Magazine - Packaging: Hard Plastic Gun Case with Black Web Sling & Operators Manual - Length: 34.5 (876.3mm) / 30.75 (781.05mm) with Telestock Collapsed