Elite Force HK UMP Competition AEG Gloves Upgrade your stock spring with

Upgrade your stock spring with this big upgrade

AKA the Namazu hopup nub metal pin for the Prometheus (may need a slight filing to get a flush fit)

The V-Tac Tactical HPA Gas Tank Pouch in OD Green made by Valken

If you plan on using the Zero trigger

The Nine Ball M9A1 Gas Gun Barrel 114

Elite Force HK UMP Competition AEG Gloves Upgrade your stock spring withThe all new airsoft HK UMP Competition AEG gun by Umarex. The UMP, aka the 'Universale Maschinenpistole' German for "Universal Machine Pistol" now in airsoft gun form! We're very excited to have this gun available, since very few companies made them. The UMP is the newly updated version of the MP 5 and is used by national forces and police departments around the world including the USA. Heckler & Koch logos are tastefully replicated on this model,