I posted something about this over on the S&W forum,does anyone have any details about a batch or batches of 4506 pistols,being produced after the official end of production in 1999? So far as I can tell ,they were produced for LAPD who then cancelled all or part of the order,after they were completed. I am trying to find out what (if any) features identify these 4506's from all others. Thanks in advance to those with info. 18DAI.