[el Gaucho]

Well, I re-read the newly posted "old" faqs again and I still have the question: Are the barrels on our beloved CETMEs chrome lined or not??? Hope someone has a definative answere.

 

[Youngblood]

The military barrels on my 2 Chopos are not.

 

[Farmall]

No.

 

[DirtyThirty]

Since the crown on mine reacts to cold blue, I am guessing, "No".

 

[THUNDERSTRUCK]

Another emphatic NO have a whole crate of demilled barrels and not a chrome bore to be found, ALOTA rust though.......

 

[jfowl31]

another one kinda on the subject but not...

I heard when I first got into Cetmes/HKs that they had polyginal rifling.

I know I've never seen one with it, but where did THAT rumor come from? Older models orsomething? Experimental? Or no truth whatsoever?

 

[Farmall]

....polyginal rifling.

Edu-ma-cate me there Jfowl...

What's polyginal rifling?

 

[jfowl31]

this explains it pretty well.

http://en.wikipedia.org/wiki/Polygonal_rifling

Glocks and HK's are polygonal rifling (pistols), and at one point I read from multiple sources that HK's and Cetme's were too until I started handling them.

 

[AZshooter]

Not chrome.

Never seen a poly-rifled barrel on a CETME or HK.

 

[wwIIbuff]

I think my FMP g3 may have it. It does not look like standard groves. not sure though will take a better look next time I shoot it

 

[Tom Doniphon]

In 1975 I beleive it was HK imported a small amount of 91's that had Polygonal rifling. The were designated A4 and A5 by HK in that year and were available in small numbers. They have no different markings just the different barrel.