KAC-KNIGHT'S ARMAMENT SR25/M-110 FLASH SUPPRESSOR SHIM KIT Used for the SR-25 flash suppressors where the shim goes against the end of the barrel and inside of the flash suppressor. Does not fit over the barrel. Includes 4 shims and Rocksett.
- Inside Diameter: 0.518"
- Outside Diameter: 0.683"
Note: Does not fit the 5/8"-24 muzzle devices