Smith & Wesson J Frame Model 317 Cylinder Assembly 8-Shot .22 LR Factory New Part 216270000 mp-40-20-full This is the new style

This is the new style MIM trigger — compatible with post-1997 Model 66 dash variants (66-4 and later)

Includes: Bolt

Includes: Side plate and mounting screws

You should see "16" or a dash variant like "16-1"

Smith & Wesson J Frame Model 317 Cylinder Assembly 8-Shot .22 LR Factory New Part 216270000 mp-40-20-full This is the new styleSmith & Wesson J Frame Model 317 Cylinder Assembly 8 Shot . 22 LR Genuine factory new Smith & Wesson cylinder assembly designed for the J Frame Model 317 AirLite revolver. This OEM replacement part ensures reliable function for . 22 Long Rifle ammunition in an 8 shot configuration. Specifications Frame: J Frame Model: 317 AirLite Caliber: . 22 LR (rimfire) Capacity: 8 shot Condition: Factory new OEM Part Number: 216270000 Compatibility Designed