Who makes the best M1A gas cylinder

[NuJudge]

I see various vendors offering them. Smith, SA, and perhaps others. Which is best?

CDD

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[2barearms]

Smith makes a pretty good Gas Cylinder(GI being the best) and they
are priced very reasonably compared to GI parts. I haven't looked lately
but Numerich used to sell SA's Chicom Parts.

[ivan]

I have two new Smith Ent. perfect in every respect.