Elite Force Rebuild Kit for HK UMP Airsoft Pistols hi-capa grip 03mm Tight Bore

03mm Tight Bore

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

T-DEAN & LIPO READYWe are living in the 21st century

6v 1500mAh Crane Battery

Elite Force Rebuild Kit for HK UMP Airsoft Pistols hi-capa grip 03mm Tight BorePick 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!