Elite Force Rebuild Kit for HK UMP Airsoft Pistols hi-capa grip if used with the guns

if used with the guns original hop-up chamber and bucking

The result is new goggle that refuses to be beat in fit

The Fire Hawk is designed to be one well performing airsoft gun for the CQB environment

Compatible with all 6mm airsoft rifles

Elite Force Rebuild Kit for HK UMP Airsoft Pistols hi-capa grip if used with the gunsPick up one of our HK UMP GBB Rebuild Kits. It's got all the parts you need to bring back the joy you experience when firing your gas blowback UMP on full auto . So you caught the broadside of your buddy's helmet with your HK UMP GBB SMG during some intense close quarter battle action and now the bolt doesn't quite cycle with a snap like it used to. Never mind the hurt you just brought to your battle buddy's brain bucket, you've got a gun to fix!