The CM508 is an M4 RIS replica1:1 scale full size replica electric AEG 6mm BB airsoft machine gun manufactured by Cyma Airsoft. The CM508 is from Cyma’s new line of Gen-4 airsoft AEGs which have been designed for all levels of airsoft and skirmish players. The CM508 is manufactured from toughened ABS anti-shock X-Tac polymer resin with a metal outer barrel, charging handle and buffer tube, all with great build quality and no flexing. The gun has been carefully balanced in UK legal two tone and blue colours so that the adaptive rail and tactical stock are blue, but the main body and barrel plus extra parts remain black. The CM508 M4 Ris has an ergo friendly design suitable for both left and right handed users, and an adjustable tactical stock to fit most sized users. The CM508 can fire in fully automatic and semi auto firing modes, and this gun features a V2 metal gearbox and hi-torque electronic motor which ensures a fast rate of high velocity shooting. The CM508 is supplied with a hi-cap 300 round magazine for 6mm bb pellet. Effective range is about 40-50 metres. Included in the kit is a long life NI-MH re-chargeable battery and UK mains charger. The CM508 is great piece of kit, just charge up the battery and your ready for battle!. We recommend only using 6mm high quality polished airsoft BB pellets with this AEG machine gun. Please be advised that these guns are colour coded to UK legal 2 tone blue upon ordering. Delivery will be 3 to 4 working days after placing your order.