Please choose between the 4 notch and 6 notch Barrel Ring Lug depending on whether your KSG barrel ring has 4, or 6 notches on it.
Note: All KSG's now ship with 6 notch barrel rings.
Used to remove the Barrel Ring from the KSG in order to install a threaded accessory to the muzzle.
Additional tools may be required:
-A vice or clamp
-A torch or heat gun