acceptance of a semi-automatic pistol within both police and civilian circles (who had heretofore used the-then-more reliable revolver). The P7 PSP represented the older style and original design which incorporated a heel catch for the magazine. Along with the very excellent Sig P225 , the P7 won contracts as WG Police pistol in the late 1970s. Subsequent US models, namely the P7M8 (8 rd mag) and M13 (13 rd mag) had the mag catch relocated to the more desirable rear trigger guard ...