This AAC shim kit lets installers precisely time flash hiders and muzzle brakes on 7.62mm/.308 rifles with 5/8"-24 threaded barrels. The set includes multiple shims of varying thickness with a .750" outside diameter and .625" inside diameter, so the muzzle device can be rotated to the correct clocked position without shaving the barrel shoulder. It's a simple, inexpensive fix for achieving proper alignment on AR-10 and bolt-gun builds alike.
- Model : Shim Kit
- Thread Pattern : 5/8"-24 tpi
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