McCormick Power Mags can be tough on alloy frames, a fact McCormick acknowledged by introducing the Power Mag+. I don't differentiate magazines by frame material (all for one, one for all) so no use for Power Mags. Wilson Combat magazines generally disable the design goal of the 1911: controlled feed. No thanks.
Metalform magazines are the standard in conventional magazines, but the improved, dare I say modernized, follower of the Tripp magazine is my nomination for the Best.
