Surefire Shim Kit, 1/2-28. Constructed of stainless steel, this shim kit from Surefire is a great solution to properly index your muzzle device. Designed with an outer diameter of .700" & and inner diameter of .510", this kit works with 1/2" x 28 TPI threaded barrels chambered in .22 caliber, 5.56mm or 9mm. Along with a tube of Rocksett in this kit, it also features 9 shims of various thickness to allow you to accurately install muzzle devices to your firearm.
This is a direct replacement shim kit for the FH556-RC SOCOM Flash Hider, but can be used on any other muzzle device that accept these sizes of shims.
Features:
- Outer Diameter of .700"
- Inner Diameter of .510"
- 9 Stainless steel shims of various thickness
- Tube of Rocksett