UMAREX HK417 GBB AIRSOFT RIFLE V2, 16 INCH (BY VFC)

Umarex GBB HK417 licensed by the German arms maker, Heckler and Koch, real steel markings. It is a modified version of the American M4 carbine with many changes. Fully Licensed Product  VFC Gen 2 Gas System Reinforced Internals  Strong Recoil  Build Material: Aluminum Alloy / Steel / Fiber reinforced polymer / More Durable V2 Internals. CNC Aluminium free float Rail Magazine Capacity: 20 ( 6mm ) System: Gas Blowback, Semi / Full Auto, Hop-Up Muzzle Velocity: ~390fps with 0.2g bb This product is only compatible with gas designed specifically for Airsoft guns. Do not use lighter fluid or butane gas, as that will cause permanent damage.