Changing muzzle device

**parishioner** · 12-10-10, 18:58

I'm in the process of switching out my A2 flash hider with a battlecomp. In the past, after I installed a vtac rail, when I hand threaded my A2 back on it went to the point of only needing about a 1/4 turn with the wrench to get it tight and properly aligned.

Now, when I hand thread the battlecomp, it looks like its going to need a little more than 1/2 a turn to be properly aligned. Basically, its upside down. The battlecomp logo is on top. I tried to turn it with a wrench with just my dad holding the upper down and I couldn't get it properly aligned. I needed another 1/4 of a turn. Just to check, I put the A2 back on to see if I could tighten and align it with the wrench with my dad holding down the upper and I could.

I don't have a lot of experience with changing these so I was wondering if this sounds within reason and before I go put it in a vise and try to tighten it with a good bit of force.

Thanks.

**Brahmzy** · 12-10-10, 19:06

DON'T over tighten it. I assume you're using the supplied crush washer? I typically hand file down the crush washer (pain in the ass) until I can get about an 1/8th turn on the comp to tighten to TDC. Use blue loctite.

**parishioner** · 12-10-10, 19:54

I want to add that I used the crush washer that was supplied as well as the one that I already had on there and both result with the battlecomp in the same positon.

I may try to grind the washer down a bit. Thanks.

**Luke_Y** · 12-10-10, 21:12

Tighten a 1/4 or so, loosen/tighten, loosen/tighten, loosen/tighten...

It should work it's way around.

**Supermoto** · 12-10-10, 21:44

Are you using a new crush washer or the old one, use a new one,

try a split washer or

Try it without the crush washer, see if it will time on correctly without it.

You can mill or file the back of the comp so that it will, that gives the cleanest look

**parishioner** · 12-10-10, 21:50

Im using the new one. I also tried to use it without the washer and it wasn't timed right.

**cop1211** · 12-10-10, 22:10

I just did this myself with 2 Battle comps. The first went on a BCM 11.5 easy as could be. The second went on a Larue 12.5 and was a pita, took 40 minutes to get it timed.

But I dont have a vice and was doing it all by myself.

**parishioner** · 12-10-10, 22:17

Originally Posted by cop1211

I just did this myself with 2 Battle comps. The first went on a BCM 11.5 easy as could be. The second went on a Larue 12.5 and was a pita, took 40 minutes to get it timed.

But I dont have a vice and was doing it all by myself.

Okay so it's normal. Wasn't sure if something was wrong or what. Thanks.