IUR disassembly

[ricohman]

Not that I will ever need to take my IUR apart, but how are these put together?
The upper looks to be one piece.
How do they get the barrel, gas tube and heat shields in there or apart for service?

 

[Blastattack]

They use a very long tubular wrench that goes over the barrel to remove it.

 

[bsand]

There's a pin holding the nut in place, then they use a long tubular socket wrench. The tricky part is not destroying the heat sheild during removal or install. The gas block is also pinned with a special sized one compared to normal uppers. If memory serves me correctly.

 

[ricohman]

I guess these are not for the enthusiast who can change his own barrel. Sounds like you would have to send it in for any type of servicing.

 

[johnsmith3791]

http://coltcanada.com/assets/94202c-1ev.pdf

is an exploded view of the IUR

 

[onetwentyish]

CSC has a barrel change service available.