Features: Caliber: 9mm Luger ? WC-AR9 Platform Barrel Length: 16" Overall Length: 33" Weight Empty: 7 lbs 0.2 oz Magazine Compatibility: GLOCK Billet Upper (Flat-Top) and Billet Lower Receiver Wilson Combat Match Grade Barrel 5/8?x24 Threaded Muzzle with Q-Comp Wilson Combat M-LOK Rail (suitable for gas block coverage) Wilson Combat/BCM Starburst Gunfighter Grip Black Wilson/Rogers Super-Stoc Wilson Combat TTU (Tactical Trigger Unit) 9mm 4# Proprietary Bolt for Excellent Feed Reliability with Common Bullet Profiles Armor-Tuff Finish applied over Mil-Spec Hard Anodized Upper/Lower Receivers Use of Commonly Available Service Magazines Positive Lock Back on Empty Magazine Standard AR Furniture/Sight Compatibility Quiet Suppressor Host