The Ruger Mini-14 is a small, small-caliber and lightweight semi-automatic rifle improved by the American firearms company Sturm-Ruger with the M1 carbine and M14 automatic rifle. It is a "mini" version of the M14 automatic rifle. There are 5 models in total. The Luger Mini-14 non-target version can fire civilian .223 Remington and similarly high 5.56×45mm NATO caliber rifles at the same time, while Luger Mini-30, Luger Mini-6.8, 222 Remington and 300 Blackout The model fires 7.62×39mm Soviet caliber, 6.8×43mm Remington SPC, .222 Remington and .300 AAC BLK caliber rifle bullets respectively.