GLFA .223 WYLDE RIFLE - 16" BARREL / AR-15 / M4 / 1:8 TWIST This is not only GLFA's best selling rifle, it's our best selling product. Not only is it damn good looking... it's extremely accurate, afforable, and made in Michigan! From the mouths of customers: "This thing is a tack driver!" CALIBER: .223 Wylde [Accepts both .223 Rem and .556 NATO ammunition] ACTION: Semi-Automatic BARREL: 16" x 1", 1:8 Twist, 1/2 x 28 Threads, Carbine Gas System, .750 Gas Block, M4 Feed Ramps, Heavy Barrel HANDGUARD: 15.25" Aluminimum M-Lok MAGAZINE: 30-round OVERALL LENGTH: 36.5 WEIGHT: 8.05 lbs