What barrel was this?

[Grizzlypeg]

This is a chopped off piece of barrel that came with a torched apart Mark II receiver I received. Wondering if its a Mark II barrel? I want to cosmetically restore this gun, but of course have it remain deactivated. Should I source another barrel, or replace the gas assembly and reattach an extension to the barrel (then source the rest of the parts)?

Information

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[peregrinvs]

A MkII gun would have been built with a Mk2 barrel, although a Mk1 barrel will fit on a Canadian MkII Bren receiver - but not on a British MkII receiver.

I don't know if your one is a Mk1 or Mk2 barrel, although it has a Mk1 carrying handle sleeve. You also have a Mk1 butt-slide, which a MkII gun wouldn't have been built with.

Now over to the real experts.

Mark

[Grizzlypeg]

Some more pictures of this mismatched collection of parts:



---------- Post added at 09:43 PM ---------- Previous post was at 09:40 PM ----------

Another shot:

[peregrinvs]

Form an orderly queue offering to swap the Mk1 butt for a correct Mk2...

Mark

[Peter Laidler]

Looks like a Mk1 barrel and they have used a bandsaw to cut through the barrel just ahead of the gas block. That a Mk2 gun would have been made with ALL Mk2 parts is not strictly correct. It would have been made/assembled with whatever parts were at hand - as in this case

[Brit plumber]

Can some one post the photos a diffrent way, I only see red crossed boxes and I think its the works computer blocking them or a link to them.

ATB, Chris.

[Grizzlypeg]

Is a Mark II upper capable of fitting onto a Mark I lower?

[Peter Laidler]

Yes grizzlypig. All the various mark/type components were made to be fully interchangeable. If not as a part (such as a butt plate for example) then it would be as an assembly - such as a complete Mkx butt on a Mky butt slide and so on.

That's not a badly dewatted Mk2 body in picture 3 is it? The gas cylinder must be the most simple piece to re-weld simply because the actual piston is so articulate on the piston extension. Jeees, you would only need to use the barrel as a jig to get the gas cylinder linear with the line of the barrel.

[stencollector]

Yes. The only differences are minor, like the screw holding the buttstock, and the extra length forward of the front mounting point. The mk1 has the extra inch or so of material, the mk2 ends right after the mounting point. A mk1 pistol grip has a large hollow screw to hold the grip on, the mk2 uses a smaller and more standard screw. The early mk1s had a bit more fancy machining at the back portion of the lower right behind the pistol grip, but this was done away with fairly early in Cdn production.

[Brit plumber]

And the left side too.