Metalform & Brownells Mags. Seem to be identical. (My pics of my mags)
The Zenith mags linked to by folks here appear to also be the same mags.
I have had great luck with my Metalform and Brownells mags.
Zero failures with the Metalform in this test.
I have three Checkmate 1911 9MM mags as well and they have been good, but not great, although my 9MM plinker load runs just fine in them, as well as my older style Wilson 9MM 1911 mags.
My Checkmates look like the mags at Joe's linked to in the opening post.
My Checkmate 9MM Mags
The Zenith mags linked to by folks here appear to also be the same mags.
I have had great luck with my Metalform and Brownells mags.
Zero failures with the Metalform in this test.
I have three Checkmate 1911 9MM mags as well and they have been good, but not great, although my 9MM plinker load runs just fine in them, as well as my older style Wilson 9MM 1911 mags.
My Checkmates look like the mags at Joe's linked to in the opening post.
My Checkmate 9MM Mags