The first M4 Variant rifle from IWI US this 12.5 Tactical Rifle includes a 11.5 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. – Main Features – 12.5 SBR – 1:8 Twist Chrome Moly Vanadium For Maximum Compatibility with All Ammunitions – Nitride Treated for Durability and Accuracy – Free Floated M-LOK Rails for Accuracy and Accessory Compatibiliy – 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 12.5 – Overall Length 29.5 Stock Collapsed 32.75 Stock Extended – Weight 6.5 lbs. – Rifling 1:8 inch twist – Stock Type Adjustable B5