Thanks to @ZoidMeister and this Wilson mags thread I learned that Check-Mate has low-profile, 8-round magazines for the .45 FS 1911, so a couple of weeks ago I ordered four of the stainless, hybrid magazines. I got them this week. Check-Mate sent me five rather than four - and it was noted as...

Sold my 1911 and have some leftover magazines: (4) Checkmate CM45-7-S-H-CMF magazines unused, still in sealed plastic bag (2) Checkmate CM45-7-S-H-CMF magazines used once (at most 50 rounds through). (1) Tripp 7R-45-WG magazine used once (at most 50 rounds through). Price: $100 shipped.

Hello - interested to hear about your experience ordering magazines from Checkmate Industries. I placed an order a few weeks ago and have heard nothing from them. I attempted to contact them for a status, but so far nothing.