Buying M frame (frame only) 3rd gen or newer and old lenses

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I have some m frame lenses I picked up at a vault a few years ago and need a frame for them. “Pro M frame” generation or newer.

I also have a 2nd gen m frame (frame only) and am looking for sweeps in grey or +red that will fit that generation (the newer lenses are bigger and will crack the frame...

‘thanks!