Smith & Wesson Revolver J Frame Model 51 Cylinder Stop & Spring Part# 5181A mp22c while the Model 500 is

while the Model 500 is chambered in

This listing is for one (1) factory new OEM Smith & Wesson M&P 22 Compact Recoil Spring Guide Rod Assembly (Part# MP22C1)

Function: The extractor (also called the ejector star) is the star-shaped component at the rear of the cylinder that engages the cartridge rims

Red ramp front sight installed

Function: Slide lock and release mechanism

Smith & Wesson Revolver J Frame Model 51 Cylinder Stop & Spring Part# 5181A mp22c while the Model 500 isUsed OEM Smith & Wesson J Frame Model 51 (. 22 WMR . 22 Magnum) Cylinder Stop & Spring Old Style. Part# 5181A. This listing is for the used cylinder stop and spring assembly only. Factory original Smith & Wesson part. Model: 51 (Pre Model Kit Gun) Frame: J Frame Caliber: . 22 WMR (. 22 Magnum) Part#: 5181A Condition: Used Surplus Style: Old Style