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. – Model Number(s): Z15TAC16 – Caliber: 5.56 NATO – Action: Semi-auto – Operating System: Direct Impingement – Magazine Type: Polymer NATO STANAG – Magazine Capacity: 30 Round – Barrel Material: 4150 Chrome Moly Vanadium HB – Barrel Length: 16“ – Overall Length: 33“ Stock Collapsed 36.25“ Stock Extended – Weight: 6.5 lbs w/out Magazine – Gas Length: Mid-Length – Rifling: 6 RH Grooves 1:8 Twist – Stock Type: Adjustable B5