It will be obvious !

[Mikey51]

Does anyone feel like getting onto this subject ?. Mike.Attachment 22403

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[usgicollector]

What are you asking Mike?
The gas cylinders were made by different companies and assembled on the barrels latter.

[browningautorifle]

I had the option of buying several barrels with the gas block seperate. I guess it was also as a repair issue. They could be swaged on to a barrel that had a damaged gas block also.