barrel extension

[4150bandit]

ok here's what's happen last night was breaking down ar  for a cerakote paint job as I was taking the muzzle brake off the barrel and not really putting much pressure on it I might add well the barrel and barrel extension came lose from one another and that feeling of this can't be good ran all over me so question is now is this barrel just a conversation piece or can something be done take into account the upper was made by troy 

[washguy]

4150.  So how were you removing the brake?...was the upper in a upper claw while you were removing the brake?     Wash

[4150bandit]

had the upper in a Geissele AR10/SR25 reaction Rod  and was using a and 6 inch adjustable wrench I've done more times than I can count never once have had this happen and I always heat up the muzzle before hand to make stuff easyer

Edited March 5, 2016 by 4150bandit

[washguy]

You certainly went with a nice way to take off the brake....im no gunsmith...someone that is will be along...but I would call troy and work it out with them if it was me..

Wash

[Matt.Cross]

I think some pics would be nice, barrel and extension, might not help us fix your problem but could be a great "don't let this happen to you" scenario.

[sketch]

picks indeed ! 

[4150bandit]

not  a very good pic of it tho got the Geissele  reaction Rod at gun show for 100 buck  works really well do work on uppers,

[4150bandit]

its one tho things that make you think about it next time you pull the trigger I mean it where ever thing happens at

[82HALO]

There is a very long thread about this happening to someone over on the ar forum. Many guys chimed in on this, and few gun Smiths...they all said it's pretty much toast! I would contact the manufacturer and see what you could work out!

They also said the reaction rod and receiver clamp vise is a big no, no for this! Use a barrel clamp only!

[Tripledeuce]

I would not worry to much about the bbl.  Screw it back together, check the headspace, and if OK, then red locktight the hell out of the extension, and let it cure.

   I would be A LOT more worried about damage to the upper!  Check it VERY carefully!

  Respectfully

  Terry

[Robocop1051]

Troy should take of you. I can't see why they wouldn't. A simple letter saying, "the barrel extension came off one of your barrels, would you please put it back on for me?"... should suffice.

It'll be some down time though. 

I have a barrel clamp system and I rarely ever use it. It's really only needed for muzzle devices. I use crush washers, so there isn'the too much torque involved. Last time I used it, I lost the leather I usually put inside. I tried to use an old tshirt instead, and really messed up the finish on my barrel.

[82HALO]

These are what I use to clamp a barrel in the vise.

 

www.amazon.com/gp/product/B0057PUEZO?psc=1&redirect=true&ref_=oh_aui_detailpage_o07_s00

[Robocop1051]

I have the old style aluminum barrel clamps. They allow me to do the heavy, m4 and pencil contour.

[survivalshop]

  Barrel clamped into a Vice block of some sort is the only way to safely remove or install Muzzle Devices . That Barrel Extension should not have came lose with normal Torque , unless it wasn't tight to begin with , contact Troy before you try to re-install it .

  I thought Barrel Extensions were left hand threaded ? Maybe not all ? 150 ftlbs + on the Barrel extension .

 Its not all about if it HS 's correctly , it has to be correctly indexed to the Gas Port . You might get lucky & it tightened back to the correct spot .

[Matt.Cross]

I don't see where they ever installed the through pin to keep it from backing off the threads...

[Robocop1051]

The pin doesn't always go through. It's just for alignment. 

[slugger43]

To reinstall you're gonna need one heck of a good barrel vise block set, and I don't know what the torque specs are for the barrel extension.  I'd also say call the barrel manufacturer for their advice.  If it were me, I'd have them do it.  I'm guessing, but the extension may not have been torqued sufficiently when installed.  I can't imagine a 6" wrench on a brake having enough torque.  Man, you gotta be Mr. Gorilla arms!

Barrel extension wrenches (reaction rods) are terrific for barrel installation, but should never be used to unscrew a muzzle device.  

[kenichols29]

I had the same issue with mine recently. I contacted the manufacturer and they replaced the barrel. I would contact them and see what they are willing to do.