A rifle designed for and used by professionals. The Gilboa Carbine features high quality components including a tack-driving cryogenically treated Stainless Steel barrel black nitride-finished bolt carrier group and a lower receiver that is machined to Stand out from the reSt of its forged counterparts. For one rifle that is at home anywhere from the match cart to the patrol car nothing fits the bill quite like the Gilboa Carbine. - Method of Operation: Direct Impingement Gas System - Firing Mode: Semi-Auto Caliber: 5.56x45mm - Barrel: 1:7 twist 416R 16'' Stainless Steel w/ M4 Feed Ramps and Mid-Length Gas Port Cryogenically-Treated with Black Teflon Finish - Muzzle: A2 - Upper Receiver: Billet - Lower Receiver: Forged - Handguard: Free Float M-LOK - Trigger: Mil Spec - Weight: 6.61lbs (without magazine) - Overall length: 33.4-36.6 - *Rifle does not include sights.