Type: BB air pistol. Manufacturer: Umarex. Model: Smith & Wesosn M&P. Materials: Mostly plastic construction with a few metal parts. Weight: 1 pound. Barrel: 4.25 inches, metal non-rifled. Propulsion: CO2 x 1. Action: Semi auto, double action. Ammunition Type: 4.5mm BB's. Ammunition Capacity: 19 round magazine. FPS: 480. This is another low cost replica air gun from Umarex designed for the more entry level buyer. I wasn't a big fan of the Umarex S&W M&P even before I bought, I purchased it mainly for the comparison review. I have to say the S&W M&P has grown on me soemhwat after shooting and reviewing it, as it does shot well and has great sights on it. I like the fact that the S&W M&P is very true to the original pistol in appearance which as I mentioned before makes it a great candidate as a low cost prop gun for TV and Movie sets. Read full article here: https://www.replicaairguns.com/2011/3/12/umarex-sw-mp-co2-45mm-bb-pistol-review.html Buy Umarex S&W M&P CO2 4.5mm BB Pistol in Canada: https://www.replicaairguns.ca/smith-wesson-mp-45mm-bb-pistol Buy Umarex S&W M&P CO2 4.5mm BB Pistol in the US: https://www.replicaairguns.us/smith-wesson-mp-45mm-bb-pistol