Indexing a muzzle brake is relatively straightforward. You can use a crush washer or jam nut for this purpose. The goal is to set the muzzle brake at 12 o’clock so that the side holes are horizontal.
Some advice on adjustment with crush washer:
- Always use a new crush washer.
- Use plenty of lube; anti-seize is a plus.
- Install the crush washer so that the flared side is facing the muzzle device and the narrow end is up against the barrel shoulder.
- Using a minimum of 20 and a maximum of 45 lbs. of torque, “crush” the washer.
- If you have a long way to go, only do quarter turns and then back it off. It will be crushed gradually in 1/8th of a turn increments. Because once it’s correctly oriented, you don’t want to back it off.
Also here you can learn more about the process and how to do it with jam nut:
See also: the AmmoCave team picked out the best compensators for you!
Anonymous edited answer September 24, 2022