How to remove LaRue TranQuilo brake

[RSTX]

Holy Eugene Stoner!!! I received my LaRue Ultimate Upper on Wednesday. This afternoon I tried to remove the brake that ships with the upper. I clamped it in my vise and could not budge it. I didn't get medieval on it but I did give it some effort. I've learned not to force expensive things, so I'm here in search of advice.

How do I get this off so I can put on my Dead Air brake/suppressor? Is it pinned? Welded? Rocksett?

[imaguy3]

first off, don't clamp the upper in the vice...

You need to use this if you're gonna put any legit torque on the end of the barrel https://www.brownells.com/gunsmith-t...prod55168.aspx

[imaguy3]

I used this one to save money... ended up grinding flats on the sides so the vice would bite it https://www.brownells.com/gunsmith-t...452-53686.aspx

[imaguy3]

another option https://www.brownells.com/gunsmith-t...46-229426.aspx

[AZHTfreak]

first off, don't clamp the upper in the vice...

You need to use this if you're gonna put any legit torque on the end of the barrel https://www.brownells.com/gunsmith-t...prod55168.aspx

[Klem]

+1

I would not use any of those reaction rods that sit in the lugs of the barrel extension. The extension is only held to the barrel by 150lbs of torque and maybe the crush of the index pin into the threads, but usually not. Other forums have posters with experience unscrewing their barrel extensions off while trying to undo glued muzzle devices. It is also a long way from the muzzle to the barrel extension to be torqueing up the barrel.

I would isolate the torque as close to the muzzle as possible and use a barrel vise or barrel clamps. Or if I didn't have these make my own out of a couple of blocks of wood like AZHT is recommending.

I don't know for sure but it would likely be glued in place by Rocksett. I read soaking the muzzle overnight in water helps. Applying heat to it might help but Rocksett is designed to withstand heat, which is why they use it in the first place. I also read someone heating it up and tapping it with a hammer in a few places before applying force to remove. The common thread is applying a lot of effort with a wrench and breaker bar.

[VASCAR2]

[RSTX]

I should have mentioned that I used a barrel block on the barrel. No stress/torque at all on the upper.

[RSTX]

Soaking the barrel overnight in water seems to be popular. I'll try that. Will report back...

[TexHill]

May not hurt to sacrifice a Taurus to appease the gunsmithing gods. =)

[Silverjay]

They use loctite. Needs heat.

[RSTX]

Soaking in water did not work. I'll heat it up later and see what happens. I also bit the bullet and emailed LaRue to ask for help.

At this point I think it would be better to just buy a suppressor from LaRue that fits the brake!

[Silverjay]

[RSTX]

I finally got it off! I tried a heat gun and it didn't help. I then used my mini torch (think creme brulee sized) and it finally, reluctantly, loosened.

Anyone want an unused TranQuilo brake? PM me if interested.

[Kswhitetails]

PM sent on it, I'd jump at the right price.