Went to the range with the 75b and Phantom. All 9 mags locked back 100%. One mag dropped the slide when installed, but probably me hammering it (that’s why I have rubber pads on everything)
At home I tried all 9 mags + one MecGar 16 for a control in some CZs and clones. 7 mags locked back. 2 mags were problematic with some of the guns. They would lock back if the slide was racked forcefully, like under recoil, but not if you were lazy about it. With other mags or guns that might have worked but not these 2.
PCR, locked back and dropped 100% all mags
Canik L-120, locked back and dropped 100% all mags
Canik S-120, none of new mags fit. Thinking maybe the mag break is sticking out. Even the MecGar was tight but still workable.
40P, locked back and dropped 100% when you gave it a good pull.
97B, locked back and dropped nothing because it doesn’t use those mags. Just keeping you on your toes.
75b, locked back and dropped 100% when you gave the problem mags a good yank. At the range 100% with everything.
Phantom, locked back 100% all mags. At the range 100% with everything. Didn’t drop free any mags including the MecGar, just an inch or so, but this is a known issue on MY gun. Only mags that drop free are CZ factory 16 and 19 rnd mags.
If I have some time I’ll see how rubber and MecGar +2 base pads fit. I’m guessing the fancy spring and pad will nix them.
Overall I’m very happy with 9 mags for $50. Only downside is I’ll have spend 2x that for rubber base pads — if I ever see them in stock and they fit.