391690000 Smith and Wesson M&P 45 Recoil Spring Guide Full Size Compatible with:.45 acp 4.6" & 5" Barrel
10mm 4.6" Barrel (Black)
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