How the hell do I do this?!?- F/S off an M4 upper

[ARCHIVED THREAD] - How the hell do I do this?!?- F/S off an M4 upper

Posted: 5/17/2001 5:42:09 PM EDT

How the hell do you screw off a f/s on an M4 upper? I put canvas around it and used a wrench- no movement at all.

Any suggestions?

Posted: 5/17/2001 5:50:29 PM EDT

[#1]

Maybe is it a pinned phantom or vortex?

Posted: 5/17/2001 5:52:04 PM EDT

[#2]

Forgot to finish. If it's not, then you maybe just need a bigger wrench so to speak. The FS does not need to be overly tight but sometimes folks will torque the hell out of them.

Posted: 5/17/2001 5:58:07 PM EDT

[#3]

Heat it with a hair dryer.

Posted: 5/17/2001 6:04:52 PM EDT

[#4]

It's not pinned or welded and it's not a vortex or phantom- it's an A2.

I don't have a hair dryer. Frikin thing is on there tight as sh*t. Any other suggestions.

I'll try a bigger wrench . . .

Posted: 5/17/2001 6:06:01 PM EDT

[#5]

F/S is only supposed to be torqued to 20 ft/lbs., which is not that tight. It's either been overtorqued or perhaps someone used Loctite on it. Having said that........
heat the F/S with a propane torch, then chill the barrel with a little cold water or chunk of ice. The temp difference should expand the F/S and contract the barrel enough to unscrew the F/S..[smash]

[ARCHIVED THREAD] - How the hell do I do this?!?- F/S off an M4 upper

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