A decent budget gas blow back pistol; the KWC M9 has plastic externals but decent heft thanks to the high mass of its metal internals. Shooting in the 280-300 fps window, it makes for a decent sidearm and although it will not be winning any competitions any time soon it is certainly good enough as that secondary weapon to fall back on during a game. At that power level, it is quite safe for short range use (less than 5 feet) provided proper basic protection is worn of course.
As an M9 pattern weapon it is very easy to find a range of holsters for it, equally so the magazines are compatible with many pouches and holsters. Even with fairly rapid shooting, feeding on Green / Top gas the cool down issues are not too bad and accuracy is good enough to hit human sized targets in the short to middle ranges without too much difficulty. The hop-up is adjustable so you can tune it optimally for your choice of ammo and typical engagement range.
A nice choice for the first time buyer who does not want to break the bank and is happy to start at the shallow end. It serves well enough for basic gaming use so if you look after it then it will look after you.