Type 1 Garand Gas Lock Screw?

Is the below auction item a legitimate early M1 part or else some funky later import piece?

M-1 Garand Type 1 Gas Cylinder Lock Screw

TIA!

Don't know where they got that one. Looks home made. The early ones for the gas trap were completely different and the gas cylinder lock screws were not like this. The gas cylinder lock screw relief valves had a cross in them...right down below the ad is one of each of the real ones...

I think this was just discussed on the CMP forum. I've seen several just like that around and do not believe them to be USGI.

Here are some photos of both Springfield and Winchester WW2 lock screws.

The long slot was not US Military issueAttachment 45513Attachment 45514Attachment 45515Attachment 45516

Quote:

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Originally Posted by RCS

not US Military issue

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Does that mean you've seen them before? Where?

Let's see...Winchester has the machine marks and the SA is the smooth one?

Agree with RCS--the lock screw offered in that auction is most definitely not original US issue for the M1--likely made on the other side of the Pacific ocean. But hey, that's just speculation on my part.