IWI US, Inc, Zion Z-15 Tactical Rifle, Semi-automatic Rifle, AR, 223 Remington/5.56 NATO 16" Barrel, Black, 15" Free Float Handguard, BCM Pistol Grip and B5 Stock, 30 Rounds, 1 Magazine Direct Impingement Mid-Length Gas System B5 Systems Stock and Grip Product Description The first M4 Variant rifle from IWI US, this 16" Tactical Rifle includes a 15" Free Float Handguard, a B5 Systems Stock and Grip, and includes one (1) 30 round Magpul PMAG. Proudly manufactured and assembled at the IWI US facility in Middletown, Pennsylvania.