The Smith & Wesson Thumbpiece, New Style, MIM For Smith & Wesson J-Frame is a factory replacement cylinder release designed to restore smooth, positive operation on compatible J-Frame revolvers. Built from durable steel using metal injection molding, this blued thumbpiece offers a modern profile with a textured surface for confident control during everyday handling.

This replacement part is ideal for owners looking to refresh worn or damaged hardware while maintaining the original look and feel of their Smith & Wesson .31, .32, .34, .36, .37, .38, .49, and J-Frame models. Its checkered face provides secure thumb purchase for consistent cylinder opening at the range or during regular practice. Thoughtfully engineered to match factory specifications, it reflects Smith & Wesson’s long-standing focus on reliability and practical design.

• Manufacturer: Smith & Wesson
• Model: Thumbpiece, New Style, MIM For Smith & Wesson J-Frame
• Finish: Blued
• Material: Steel
• Color: Black
• Compatible Models: Smith & Wesson .31, .32, .34, .36, .37, .38, .49, J-Frame