.22 TCM Ammo

.22 TCM ammo is a bottle-necked cartridge based on the 5.56 NATO, designed by gunsmith Fred Craig and Rock Island Armory for semi-automatic pistols and the RIA M22 TCM rifle. Similar to cartridges like the .357 SIG, it offers speed and reduced recoil over bullet mass. Shop our selection .22 TCM ammo for your gun below.