IWI Z15TAC16: This incredible Zion-15 is IWI\'s entry into the AR-15 market, and they are making a huge splash. IWI is known for producing excellent products, and they refuse to put their name on anything that is not functional. This Zion-15 rifle is no exception and has been methodically researched and developed and is destined to be one of the best AR-15 variant rifles on the market. This rifle features a 16\" 4150 Chrome Moly Vanadium heavy barrel that aids in this rifle\'s impressive accuracy. A 15\" free-float M-LOK rail is ready to accept any accessories of your choosing, and the rifle is optics ready as well. This model comes standard with a B5 Systems SOPMOD stock, pistol grip, and (1) Magpul Gen 3 Window PMAG.