This HY017C is a UMP style Airsoft BB Gun. This gun is a single shot 6mm Airsoft BB gun, it is fully assembled and has a multi coloured torch. It also has a non-working sight and front handle grip with a strap. It is a great looking single shotgun, with very good accuracy due to its extended barrel. The UMP (Universal Machine Pistol = Universal Submachine Gun) had been developed by the Heckler & Koch company of Germany in the mid-to-late 1990s and first appeared on the markets in 1999. The key idea behind the UMP was to create lightweight and powerful submachine gun, that also will be cheaper than one of the J&K’s flagships, the MP-5. UMP, being targeted primarily for the USA law enforcement market.