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Posted: 7/31/2011 10:58:14 AM EDT
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on my AK by .010. Will a YHM can clear this? I'm sure I'll have POI shift with and without the can because the threads are somewhat non concentric. It's an AK. I would rethread but don't really have that option at this point. Thanks for the input fella's. ETA: Had a thought. Could I send it to a smith and have him make a 5/8 adapter and make it so it makes the muzzle concentric with the exit apperature of the suppressor? |
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.01" out of concentric could just be .010" out of concentric. If it's accompanied by some out of perpendicular runout, that will have more to do with runout at the front cap.
You may be able to use .001 - .003" half moon shim to push the mount into better alignment. IE nearly center. It depends on how loose the thread fit is, and how much runout you need to account for. (Also whether there is even a shoulder to put the shim against). Obviously that's not the most desirable situation, but it may be a workable solution. |
| You are really asking for trouble. Your best bet is to mail it off and have it rethreaded by a top notch gunsmith. APA, GAP, Tornado Tech are a couple that come to mind. There is no way I would put something on the end of that gun that would take four months and $200 to replace even if YHM replaced it under warranty. Your safer bet is to spend the $100 to be sure it is done right. |
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Quoted: on my AK I hate to break it to you, but AKs make terrible hosts. Like you have found, the threads are generally not concentric to the bore, and they usually need to be re-threaded. The barrels are usually pretty cheap and whip pretty badly when firing at a higher rate of fire. This whip creates a beaten zone with your impacts, which makes it a good combat rifle, and not such a good rifle for accuracy. I have seen a bad baffle strike on a YHM 762 SS Phantom from an AK with good threads, good can, and a good mount. It shot fine with the AK until the user started rapid fire. I love AKs, but I am not a fan of using them as suppressor hosts. Scott |
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Quoted: I know but when you've got a SBR Draco with an 11in barrel (respectfully) you can enjoy a little more quiet. Quoted: on my AK I hate to break it to you, but AKs make terrible hosts. Like you have found, the threads are generally not concentric to the bore, and they usually need to be re-threaded. The barrels are usually pretty cheap and whip pretty badly when firing at a higher rate of fire. This whip creates a beaten zone with your impacts, which makes it a good combat rifle, and not such a good rifle for accuracy. I have seen a bad baffle strike on a YHM 762 SS Phantom from an AK with good threads, good can, and a good mount. It shot fine with the AK until the user started rapid fire. I love AKs, but I am not a fan of using them as suppressor hosts. Scott  The noise is welcome from time to time though. I'll have to find an FFL that can take my SBR to inspect it fully. The smith who inspected it already said it was off by .010. I dont know if he meant runout or concentricity. Are those two the same? What is the difference? I don't have a 30 cal can YET. I do want one though. |
| What is the AK threaded in? I ask this because you could have the barrel rethreaded for a smaller QD mount. If it is 5/8-24 you could go down to 9/16-24 or 1/2-36 for the YHM QD mount. A prerequisite of hanging a suppressor off a gun should be the manufacturer having verification that the weapon(s) acting as hosts are properly threaded concentric to bore. See if you can get the barrel threaded for a QD so you don't have any baffle strikes. |
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Quoted: What is the AK threaded in? I ask this because you could have the barrel rethreaded for a smaller QD mount. If it is 5/8-24 you could go down to 9/16-24 or 1/2-36 for the YHM QD mount. A prerequisite of hanging a suppressor off a gun should be the manufacturer having verification that the weapon(s) acting as hosts are properly threaded concentric to bore. See if you can get the barrel threaded for a QD so you don't have any baffle strikes. It's threaded 14x1LH. It's an AK so it's metric. It's a lot smaller than the 5/8ths threads. That's why I was thinking an adapter. |
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