Airsoft pistol Metal Slide SW M40, Non-Blowback CO2

Airsoft model of the Smith & Wesson M40 is made by KWC. It has metal receiver and barrel. Missing real trademarks. The rest of the gun is made of durable plastic. Gun weight is 680g. It is powered by CO2 capsule, which is inserted into magazine body.  Just fill 15BBs into magazine and press trigger. Gun gas no blowback.  Advantage of this non-blowback version is lower price, almost no maintance, high velocity (25m/s / 410 FPS), lower CO2 consumption (up to 130 shots / 1 capsule). Optimal BB weight is 0,25g.