ACK, LLC Ring's Blue Guns Training Weighted S&W M&P 40 4.25-Inch Gun Each training aid is fabricated in Law Enforcement Blue for safety Weighted Blue Guns duplicate the weight and feel of the actual weapon when loaded and will function in high security holsters for safe draw stroke training and gun retention drills Handguns will function in high security holsters for safe draw stroke training and gun retention drills Rail guns will accept mounted accessories Hand crafted in strong impact resistant polyurethane