The GEMTECH 5/8-24 shim kit is ideal for mounting flash hiders, muzzle breaks or suppressor mounts. Crush washers and split-ring washers can cause canting of any brand of suppressor. By replacing those crush washers with a precision-made set of GEMTECH shim washers you can achieve perfect alignment and timing. The GEMTECH 5/8-24 shim kit is designed for most 7.62 rifles such as AR10-type carbines. Mfg: Gemtech
