UMAREX HK416D GBB GEN 3 AIRSOFT RIFLE (BY VFC)

Umarex GBB HK416 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 Lastest VFC Version 3 M4 / AR-15 Gas Blowback System Reinforced Internals Satisfying Recoil Impulse Quick Hop-Up Adjusting High Gas Efficiency Compatible Only with Umarex / VFC M4 GBBR Magazines HK416D Part Diagram 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.