CZ Kadet Kit - What frames does it work on and what frames does it not work on?

The PCR, all 75s, and SP01 for sure.

Yep, works beautifully on the PCR frame, won't chamber in a 40B frame though, sadly.

From what I've heard though, the Kadet upper will not lock back on the last round when used on some guns. Specifically it will not on the SP-01. Might be others. I have yet to fire my Kadet conversion on my SP-01, but I have used a Kadet conversion on my older CZ-75BD (now sold) and it worked great.

RAMI (pics) and the new PCR in the house, but not lock back of the
empty mag.

CZ really needs to offer compact mags for the Kadet Kit.

RAMI (pics) and the new PCR in the house, but not lock back of the
empty mag.

CZ really needs to offer compact mags for the Kadet Kit.

Runs on the Phantom poly frame with a PCR slide stop. Occasionally locks the slide back on last round.

RMD

Mine works flawlessly on both the CZ75 (40S&W),with a 9 mil slide lock, and also with the CZ85b (9 mil). The Kadet slide would not lock back on the last round with the original CZ 75 40 slide lock, once I installed the 9 mil it worked great.