The Home Machinist!

Some more pictures

Glenn has a good way if you want to bore it and if the small hole above the bore in the two rings goes all the way through you could use it on a dowel pin in a base plate to align the rings to bore them.

CarlD wrote:Glenn has a good way if you want to bore it and if the small hole above the bore in the two rings goes all the way through you could use it on a dowel pin in a base plate to align the rings to bore them.

I think it is a blind hole. I'll put my boots on a tromp through the snow out to the shop and check. BRB

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I imagine it would be threaded even if it is blind.

If not, thread the hole in the fixture!

Is that a conversion for the gas system ? More like an AK , suppose to keep more of the carbon out of the bolt carrier ...

Steve S

Steve S wrote:Is that a conversion for the gas system ? More like an AK , suppose to keep more of the carbon out of the bolt carrier ...

Steve S

Steve,
Looks to me like a gas block for an AR with a flip up front sight.

The hole (I think) is an unthreaded blind hole. For the propellant gases from the barrel to be redirected into the gas tube and eventuality to the bolt carrier.

Thanks,
Paul

I would remove the pivot, clamp the piece by the flat sides in a vice on a parallel, indicate on existing hole and bore.

Heavy paper between vice jaws and part.

Best regards, Jack