M4 Barrel is tight

[erskatedoc]

After shooting last week, I came home and took apart the M4. The barrel was a bear to remove. No obvious dents or trauma. Even after cleaning and lube, its really tough to reinstall.

 

Any suggestions. I'm tempted to use a little emory cloth.

 

Thanks

Edited April 23, 2010 by erskatedoc

[Grizzman]

Is it brand new? Did it previously disassemble/assemble easily?

 

I'd say it would take a serious impact to cause trauma worthy of binding the barrel in the action.

 

Grizz

[TacticalKoala]

junk it, texas skeeter will take it off your hands.....

[texas skeeter]

NOPE!! i dont like em tight. i like em loose. been that way since highschool!! AND it aint limited edition!! ^_^

[Duggan]

After shooting last week, I came home and took apart the M4. The barrel was a bear to remove. No obvious dents or trauma. Even after cleaning and lube, its really tough to reinstall.

 

Any suggestions. I'm tempted to use a little emory cloth.

 

Thanks

 

Extremely odd.

 

Get some pictures up here for us and we may be able to help more.

[tactical1]

Perhaps an unfavorable stacking of tolerances? Don't think I'd try the emery route as it will remove the surface protection from the barrel. Without any obvious issues with the barrel or receiver, you might want to see what Benelli's CS has to say

[Hookster]

Perhaps an unfavorable stacking of tolerances? Don't think I'd try the emery route as it will remove the surface protection from the barrel. Without any obvious issues with the barrel or receiver, you might want to see what Benelli's CS has to say

 

+1 on Benelli CS

 

[erskatedoc]

I had changed from a mesa tactical 4 shell carrier to a 6 shell carrier. The screws were a tad longer in the new Mesa kit and were rubbing against the breech extension (barely touched it) but it was enough to make it a pain in the butt to install and remove the barrel.

 

I took the screws that hold the mesa shell carrier out and took off a tad on the threaded end (with the bench grinder) until I could no longer feel the tip inside the receiver assembly when the shell holder was installed.

 

Works like new, and the barrel is easy to remove.

 

Mike

[Hookster]

Congrats on the successful diagnosis and treatment doc

[tactical1]

Mike - good news and thanks for the update. . . .and the barrel is still original!