: Early models may lack the "M" designation. Some trade-in models (like those from the Bavarian State Police) may have milled-out markings where original owner identifiers were removed. Where to Look for Markings
Serial numbers on the P7 series are generally chronological within their specific model lines. Common variants produced between 1979 and 2008 P7 / PSP (8-round, Heel Release): Standard production ran from 1979 until approximately 1997. P7M8 (8-round, Thumb Release): h k p7 serial number lookup