Anyone install a MAC barrel before?

[Mike85220]

I have some non-barreled uppers, and have some barrels that seemingly are easy to install. I do not want to assume anything though.

The barrels screw into the upper by hand... do I need some special tool or they need torqued to a certain level?

I am guessing, but it looks like I could use my barrel extension to really tighten it good after Loc-titing the barrel and wait for it to dry.

Then drill the slot on the barrel for the crush pin canal.
Then after that, just hammer in the crush pin.

Am I wrong? I don't want to mess this up.
Any help is appreciated.

 

[smg-45]

I wouldn't Loc-tite the barrel, just in case it has to be removed later. Tightening, and installing the pin will do it. If you don't have the barrel wrenches, then use 2 nuts jammed together on the muzzle threads to tighten the barrel.

 

[AZ Doug]

Ask Richard to be certain, but I believe he torques his barrels to the 35 ft lb range. Also he does not pin the barrels, but it is easy to do. The jam nut smg-45 mentioned works well.

 

[BlackBelt]

The wrenches sure make quick and easy work of barrel installation and removals.

 

[USMG]

we manufacture barrel wrenches to make it easier and you can also view a video of it on U tube.

wrenches-
http://www.usmachinegun.com/proddetail.php?prod=MTL-0100

http://www.youtube.com/results?search_query=usmachinegun.com&aq=1&oq=usmachine

http://www.youtube.com/watch?v=O-zaNtPIm1M


Please contact me with any questions. Thanks
USMACHINEGUN.COM
FFL/SOT

 

[strobro32]

I've seen those videos before Micheal. They are helpful. Thanks for doing that for the MAC lovers.

 

[root]

I didn't pin the barrel until I knew it was working and glad I didn't my barrel on my Mac 10 had to be seated .047 deeper to get it right.
Once it was shooting then I pinned it.

 

[Mike85220]

That is good info guys, thank you.