Surefire Shim Kit, 5/8-24. This kit contains quality stainless steel shims assembled by Surefire. Use this kit to properly index your muzzle device. Designed with an outer diameter of .770" & and inner diameter of .635", this kit works with 5/8" x 24 TPI threaded barrels chambered in .30 caliber, 7.62mm or .300 Blackout. Along with a tube of Rocksett in this kit, it also features 8 shims of various thickness to allow you to accurately install muzzle devices to your firearm.

This is a direct replacement shim kit for FH762RC Flash Hiders, but can be used on any other muzzle device that accept these sizes of shims.

Features:

• Outer Diameter of .770"
• Inner Diameter of .635"
• 8 Stainless steel shims of various thickness
• Tube of Rocksett