45 ACP (Automatic Colt Pistol) cartridge, it became the U.S. Armed Forces’ standard-issue sidearm following the failures of the Army’s .38 Long Colt revolvers during the fight against the Moro ...

45 caliber handgun. Now the folks at Solid Concepts have successfully produced one of these handguns, all steel, all 3D printed. Fabricating 3D weapons has come a long way in a short period of time.