LMT Muzzle Threads not to spec (too long) ETA Garbage ass LMT

Edit: Just took it to the range and it’s shooting 20” groups. Unbelievable.

I’ve tried mounting muzzle devices on my rifle for a long time and there’s always been a gap. I’ve solved it by not running suppressor mounts or using the Vortex FH with a lip. A muzzle device mounting on the muzzle is no big deal, but per AAC’s thread spec their mounts should mount on the shoulder. This isn’t possible if the thread is too long.

Spec seems to be 1/2x28 with 0.625” length, and AACs spec is 0.62 +0.002”/-0.000” but my LMT threads are measuring a hair over 0.650”.

Anyone ever encountered this? I suppose I could run shims (if jpmuscle says I told you so please ban him) but otherwise I’m pretty much resigned to never running a can on this rifle which kinda sucks. And before anyone tells me to contact the manufacturer, I bought this upper when George W Bush was still POTUS.

https://i.imgur.com/pqVGrMl.jpg
https://i.imgur.com/vnWAn75.jpg
https://i.imgur.com/b8sGwGw.png

False proclamations


I’m happy to see a Starrett though


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Quote:

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Originally Posted by jpmuscle

False proclamations


I’m happy to see a Starrett though


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Ban him.

Quote:

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Originally Posted by Eurodriver

Ban him.

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[emoji3165]


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You have a typo there, +.002 should be +.02

Some AAC mounts can index off the muzzle, make sure there isn't any carbon build-up and then rock on. I run about half my AAC mounts off the muzzle. Bonus if it bothers you, it will also get rid of the three prong ring.

Or use a shim, or get someone with a lathe to cut it down.

Good catch but .02 is still 0.640 which is 0.012” shorter than the threads.

Not that I dont believe you. Have you ever heard from aac it is ok to index off the muzzle?

From AAC.

The Tavor has longer threads than the AR as well, they recommend indexing on the muzzle rather than the factory jamb nut.

Ball bearings. It’s all about ball bearing. You should just shim it.

Josh I have no idea what you are talking about but I miss you man! Lol

Quote:

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Originally Posted by Todd.K

From AAC.

The Tavor has longer threads than the AR as well, they recommend indexing on the muzzle rather than the factory jamb nut.

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Google says you are correct. I will throw it on and take it to the range this afternoon.

Not that you aren’t a well respected member, but Trust but verify and all that ;)

Quote:

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Originally Posted by Eurodriver

Josh I have no idea what you are talking about but I miss you man! Lol



Google says you are correct. I will throw it on and take it to the range this afternoon.

Not that you aren’t a well respected member, but Trust but verify and all that ;)

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I literally told you the same thing


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