ak muzzle break now loose - Pistolsmith

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Old 01-28-2007, 09:40 AM   #1
Join Date: Nov 2003
Posts: 5
ak muzzle break now loose

Bought a GP WASR 10 from century arms and took it to the range for the first time yesterday. Spent the last week taking it all apart and cleaning the grease off it. It functioned flawlessly however the compensator is now loose. It screws on to the barrel about a quarter turn past the "compensator lock pin" before it screws tight. How can i correct this?
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Old 01-28-2007, 03:39 PM   #2
Senior Member
Join Date: Jun 2001
Posts: 1,801
These are often loose.

You can just shoot the rifle until carbon fouling builds up in the threads and tightens it up, or you can upset the last thread or two IN THE BRAKE to tighten the fit.
Repeat, work on the BRAKE not the barrel.
This is so any problems can be corrected by buying a cheap, easy to replace brake, instead of an expensive, hard to replace barrel.

Do do this, use a punch to SLIGHTLY upset or burr the last thread or so to make the device a tighter fit.
If it's still loose, upset the FIRST thread or two also.

Do not use anything like epoxy or thread locker. The heat from firing will cause them to break down, and make a mess.
Old 10-09-2008, 11:33 AM   #3
Join Date: May 2002
Posts: 248
Re: ak muzzle break now loose

Perfectly normal behavior for an AK. If the Comp/Brake was tight it would be a bugger to get off. It is intended to have some play, that is why there is a spring loaded detent/"lock pin" to secure it.

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