The latest from Rock Island Armory is the Micro Mag 9mm/22 TCM target.
Beside the 9mm barrel, there is a barrel and recoil spring for their new .22 TCM cartridge. Tthe Micro Mag comes equipped with adjustable sights. A simple switch of the barrel and recoil spring is all it takes to changes over, then you just have to adjust the sights to get on targetFired out of a 5″ barrel, the 40gr bullet will be blazing out at about 2000 fps. The cartridge was originally based on the shell from the 5.56x45mm case, but it now loaded in new brass manufactured by Armscor