Part# 391420000 Smith and Wesson Trigger Return Spring for Auto Pistols
Compatible with Models: M&P 9, M&P 9 Compact, M&P 9 Shield, M&P 40, M&P 40 Compact, M&P Shield 40, M&P 10mm M2.0, M&P 45, M&P 45 Compact, M&P Shield 45M2.0, SD9 VE, SD40 VE
Features: Smith & Wesson factory part.
Gunsmiths Required: Disassembly and Assembly required to replace part
Some parts may require installation and fitting by a qualified gun smith Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts