Built to the same degree as the other CMMG ZEROED charging handles, the CMMG ZEROED .22 LR ambidextrous charging handle was designed specifically for the .22 LR Conversions as well as the dedicated .22 LR Uppers/Bolts. The ZEROED .22LR charging handle features a filled-in, reinforced channel in the charging handle to prevent instances where .22 casings can eject into the open channel of a standard charging handle.