The Umarex H&K UMP Competition Series airsoft electric gun is an airsoft rifle that offers a full metal gearbox and gears with a reinforced ABS body. This Umarex electric rifle gives you the ability to fold the stock, adjust the rear sight, and easily switch between full and semi-automatic. This is an Officially licensed replica with Heckler & Koch GmbH Trademarks! This very compact AEG 6mm rifle is perfect for CQB, outdoor field games, and automatic backup weapon for snipers. The UMP also comes with a side folding stock, RIS, weaver receiver, and a metal gearbox ready to take on any upgrades and add ons. We recommend our Valken RDA20 Red Dot Sight for use with the UMP.