I am interested in finding out if there are any glaring differences in the M&P revolvers from
the Pre-War period as opposed to the Transitional period. In differences I mean internal workings,
metallurgy, etc. Thank you!

I am interested in finding out if there are any glaring differences in the M&P revolvers from
the Pre-War period as opposed to the Transitional period. In differences I mean internal workings,
metallurgy, etc. Thank you!

Probably the single most important mechanical change from pre-war to post-war was the change from a "wing" style hammer block to the rebound slide hammer block. This occured during the Victory model run in 1944.

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