Guns
HOW TO ASSEMBLE A RUGER P944 .40 S&W SEMI-AUTOMATIC PISTOL Watch this video to learn how to assemble your Ruger P-944 .40 S&W caliber, double action, semi-automatic pistol. If you own this handgun and you've taken it apart and don't know how to reassemble it, then you should probably check out this gun assembly tutorial, shouldn't you? Don't get yourself frustrated; put that Ruger firearm back together the right way.