IWI Zion Z-15 Features The IWI Zion Z-15 operates on a direct impingement system with a nitride-treated 4150 chrome moly vanadium barrel chosen for its durability and resistance to heat and corrosion under sustained fire. The 1:8 inch twist rate stabilizes a wide range of 5.56 NATO bullet weights giving the rifle broad ammunition compatibility for both training and defensive use. A custom Timney two-stage trigger delivers a crisp consistent break that improves precision compared to standard mil-spec triggers while the ARCA rail adds mounting versatility for accessories and bipods. The 10.5 inch free-floated M-LOK handguard keeps the barrel isolated from external pressure helping maintain accuracy while providing ample real estate for lights grips and other accessories. A B5 Systems adjustable stock and matching grip provide a comfortable ergonomic shooting platform that adapts to different body types and shooting positions. Every Z-15 is manufactured and assembled at the IWI US facility giving buyers confidence in build quality and quality control on a rifle that ships complete with one 30-round Magpul PMAG ready to run. IWI Zion Z-15 Specifications Brand: IWI Model: Zion Z-15 Caliber: 5.56 NATO Action: Semi-Automatic Operating System: Direct Impingement Barrel Length: 11.5 Barrel Material: 4150 Chrome Moly Vanadium Twist Rate: 1:8 Barrel Finish: Nitride Handguard: M-LOK Free Float Stock: B5 Systems Adjustable Grip: B5 Systems Trigger: Timney 2-Stage Capacity: 30 Rounds Magazine Type: Polymer NATO STANAG Weight: 6.5 lbs Overall Length: 27-31.75 Available At: GrabAGun