an 1873 Springfield Carbine in .45/70 caliber. This model is better known as the “trapdoor” Springfield because of the hinged ...

The M4-series Carbine achieves over 80% commonality with the M16A2 Rifle and replaces all M3 .45 caliber submachine guns, and selected M9 pistols and M16 rifles. The Army is pursuing a two-phase ...