Stubborn FH on AR15

[Boomer686]

So I wanted to take it off my precision Colt H-bar and replace it with a brake. Been on it since it's birth. I REALLY cranked on the motherf*cker... won't budge. I don't have a barrel vice so it makes it that much harder again.....

I am contemplating spraying it with a releasing agent and letting it sit then another good dosing and giving it another go ...

Any other suggestions????

 

[HeadDamage]

Any chance that it is pinned on?

 

[Boomer686]

Nope. I checked that BEFORE I tried unscrewing it.

Regards,

 

[beltfed]

heat is your friend.

 

[Boomer686]

heat is your friend.

Applying heat was my last option. I have torches (and a welding machine LOL ) but I am trying to be optimistic......


Regards,

 

[Cocked&Locked]

warm the flash hider a couple of hundred degrees and shell spin right off. DON'T make it glow.......

 

[sparrow]

Let it soak in some weasel piss over night, she'll be OK tomorrow. I use JB-80.

*You're not doing this on your living room floor with the upper underneath a phone book while you stand on it are you? * Don't laugh. seen it done *

 

[OZZ]

So I wanted to take it off my precision Colt H-bar and replace it with a brake. Been on it since it's birth. I REALLY cranked on the motherf*cker... won't budge. I don't have a barrel vice so it makes it that much harder again.....

I am contemplating spraying it with a releasing agent and letting it sit then another good dosing and giving it another go ...

Any other suggestions????

Hmmm, really make sure its not pinned, I have a Armalite M15T 16' stainless barrel, they are pinned and then welded over the pin and ground smooth.

If you cant unscrew it using a vise and a couple of wooden blocks on the barrel then really check for pins.

 

[KevinB]

Which Colt model?

If is a newer (after AR15A2) one that is not a LE gun odds are its pinned

 

[Craftsman 441]

With two 3 foot pipe wrenches .

 

[KevinB]

Your best off to drill the pin out.

Using a drill press and a vice block
(or end mill thingy)

It will/can make a mess of the FH -- but you can then remove it.

I've also seen people toss the bbl in a lathe and remove the FH via metal removal

 

[Boomer686]

I examined my FH very closely... definately not pinned.

The saga continues.....

So I managed to remove my PITA factory FH. I had to use some heat ...I opted to try a propane torch first so as not to heat things up too much or too fast. Clamped it in a vise with wood blocks... a few grunts and a couple of "Hail Mary's" later and it was finally off. I installed my new brake that I got from Arms East (Thanks Walter!) and everything is now GTG.

Regards,