ADV ARMS CONV KIT STD 1911 22LR W/BGThe Advantage Arms Conversion Kit for Standard 1911 pistols transforms your full size 1911 into a . 22LR trainer. This kit allows for cost effective practice while maintaining the feel and operation of your 1911. The conversion includes a slide assembly, barrel, and recoil system designed for reliable function with . 22LR cartridges. Installation is quick and easy, requiring no gunsmithing or modifications to your pistol. The kit comes with a range