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Discussion Starter · #1 ·
I have a TAPCO barrel extension that I want to install (silver solder). Question is, when you screw on the compensator, when it is at it's tightest, one of the notch lines up with the pin and it is held in place. When I screw on the extension tightly, then screw on the compensator, it is not lined up. Presumably people have sanded down the part of the extension that screws on to the threads on the barrel until the compensator lines up? Any thoughts?
 

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you could always notch it yourself.
 

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Its easy to sand or file the part to make it index to where you want it. But be carefull it dont take much to move it a good bit. I tweek all my barrel attachments to a point where its as tight as it can get by hand when the pin drops in. That way its no slop or jiggling rattly around.
 

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Discussion Starter · #4 ·
Thanks, once closer, I'll solder the extension to the brake, double check it, and give it a notch. I'm tempted however, to simply remove the pin as it has to be soldered anyway.
 

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Tapco has a step-by-step tutorial with pictures on their web page that shows you how to do this. You click product information or instructions at the bottom of the page.
 

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Master Endmill Breaker
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keiser said:
Is the barrel extension good for a US part?
Yes it is. But since you add another part to the count, you effectively cancel out the benefit of it being a U.S. made part. If there was a foreign made barrel extension that was replaced by the Tapco piece, then it would help the parts count. You'll still have to replace a total of 6 imported pieces on the AMD-65 even if you use the Tapco extension.

If you use one of the extended brakes, you can kill 2 birds with one stone. You get the extension and a U.S. made muzzle brake in a single unit. Then you just need to take care of 5 other imported parts.
 

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Discussion Starter · #9 ·
Is a barrel extension considered one of the named parts?

Yup, there it is! my bad. I would have thought no, but I guess that makes sense, so you could use the extension as a part but then your hider/compensator would likely also have to be U.S. if you didn't change the part count elsewhere. Thanks for setting me straight

(1) Frames, receivers, receiver castings, forgings or stampings
(2) Barrels
(3) Barrel extensions ****************
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Happy Camper
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meyerse said:
I have a TAPCO barrel extension that I want to install (silver solder). Question is, when you screw on the compensator, when it is at it's tightest, one of the notch lines up with the pin and it is held in place. When I screw on the extension tightly, then screw on the compensator, it is not lined up. Presumably people have sanded down the part of the extension that screws on to the threads on the barrel until the compensator lines up? Any thoughts?
Just unscrew it a half-turn and you'll be good. I don't see any reason to file it down.
 

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you have to give the silver solder a place to flow into anyways, if its too tight the solder won;t be able to get into the threads . Fill the seam up over full then dremel it lightly down so no seam shows ...
 
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