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msg73

Tight Comp/Barrel threading

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I just got a new KKM threaded bull barrel and when I try to screw on a new Ti Comp, it screws on about 2 turns but then gets very tight. The comp/barrel threads seems aligned properly based on checking the bore alignment. Are the any tips on getting the comp on besides getting a die an turning down the barrel threads?

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Sounds like you might? not have matching threads ie. 32tpi or 28tpi

The comp may have a different thread to your barrel ????

Please check ?

Best Regards.

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The comp is 11/16 40 threaded. I'm pretty sure the barrel is as well but I'll double check. I think I'll just get an adjustable die and chase down the treads on the barrel until it fits snugly.

Edited by msg73

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I've had this problem. The threads were not deep enough on the comp. I ran a tap through the comp (two times actually) and all was good. It was still snug after re-tapping. I've been shooting it for over a year now and the comp hasn't moved. Also, I used the align reamer tool as a guide when starting to screw the comp on to minimize any chance of cross-threading.

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Make sure you use a little anti seize on the threads before trial fitting.

Titanium on stainless is about guaranteed to gall.

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