[ARCHIVED THREAD] - Barrel extension

Posted: 3/10/2010 7:39:46 AM EDT

I was looking at A R barrel assy. parts diagram, shows barrel extension––––––-not sure what that means, is that something separate for barrel or what, list it for $22.50, what am I looking at in diagram, rear part of barrel or something separate
Thanks

Posted: 3/10/2010 7:43:53 AM EDT

[#1]

It's usually already installed on barrels when you buy them. It's the part that the bolt locks into.

Posted: 3/10/2010 7:49:27 AM EDT

[#2]

That is what I thought, my barrel has it, it is actually the back end of barrel where bolt goes in and rotates to lock up, just hadn't seen a barrel with out this extension before,
Thanks

Posted: 3/10/2010 7:51:54 AM EDT

[#3]

Most AR barrels come finished and already have the barrel extension mounted, unless its a blank. It is sort of a gunsmith only thing. I think it has to be done before the gas port can be drilled.

Posted: 3/10/2010 8:00:21 AM EDT

[#4]

It is the threaded end cap that mounts to the chambered end of the barrel. It provides the properly headspaced area that the bolt locks into.

Posted: 3/10/2010 8:05:46 AM EDT

[#5]

I though so, though they were trying to pull a fast one on me, ha ha
Thanks guys

[ARCHIVED THREAD] - Barrel extension

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[ARCHIVED THREAD] - Barrel extension

[ARCHIVED THREAD] - Barrel extension