This is a non-blowback Smith & Wesson m&p 40, powered by CO2, and made out of plastic, besides the internals. It can get pretty high with the FPS (380-ish) because of the CO2. Picked it up for $50 new about 4 or 5 years ago and haven't used it much since. It's not the best sidearm though, and isn't premium quality, so I'll do about $20 for it. Price is negotiable as always.