AFTE Store - Subclass Carryover in Smith & Wesson M&P 15-22 Rifle Firing Pins

The firing pin of a Smith & Wesson M&P 15-22 rifle was determined to exhibit possible subclass characteristics during
examination of evidence submitted to the Michigan State Police Grand Rapids Forensic Laboratory. Additional testing of
multiple Smith & Wesson M&P 15-22 rifles confirmed the presence of subclass characteristics. These subclass characteristics
appear to be the result of the current manufacturing process used by the vendor of Smith & Wesson’s firing pins.