Smith & Wesson Model 625 PC Mountain Gun Trigger .310" with Hand, Lever & Trigger Stop .45 ACP, Part# 625B
Smith & Wesson Model 625 PC Mountain Gun Trigger .310" with Hand, Lever & Trigger Stop – Part# 625B
This is a genuine factory Smith & Wesson Performance Center trigger assembly set for the N Frame Model 625 Performance Center Mountain Gun chambered in .45 ACP. A used new-style set in serviceable condition — a hard-to-find, high-value fire control group for restoring or upgrading your Model 625 PC Mountain Gun.
This set includes four matched Performance Center fire control components: the wide .310" trigger shoe, the hand (cylinder rotation pawl), the lever (trigger lever/transfer bar), and the trigger stop (overtravel stop). Together these components define the feel and precision of the revolver's trigger pull — the Performance Center specification delivers a smoother, more refined action than standard production parts.
Part Details
- Part Number: 625B
- Part Name: Trigger .310" with Hand, Lever & Trigger Stop
- Condition: Used, factory original Performance Center (new style)
- Frame: N Frame
- Caliber: .45 ACP
- Trigger Shoe Width: .310"
- Includes: Trigger (.310") + hand (cylinder pawl) + lever + trigger stop
- Function: Complete Performance Center fire control group — trigger pull, cylinder rotation, and overtravel control
Component Functions
- Trigger (.310"): Wide-shoe trigger for improved DA/SA control; .310" is wider than standard J/K Frame triggers
- Hand: Cylinder rotation pawl — advances cylinder one chamber per trigger pull
- Lever: Trigger lever/transfer bar connecting trigger to hammer mechanism
- Trigger Stop: Overtravel stop that limits trigger travel after sear break for improved reset and accuracy
Model Compatibility
| Model | Caliber | Frame | Compatible |
|---|---|---|---|
| Model 625 PC Mountain Gun (new style) | .45 ACP | N Frame | ✅ Yes |
| Model 625 JM (Jerry Miculek) | .45 ACP | N Frame | ⚠️ Verify fitment — PC variant |
| Model 625 (standard) | .45 ACP | N Frame | ⚠️ Verify fitment — may lack trigger stop provision |
| Model 629 PC | .44 Magnum | N Frame | ⚠️ Verify fitment — same frame, different caliber |
| Model 625 (old style / pre-2001) | .45 ACP | N Frame | ⚠️ Verify fitment — old style may differ |
| J / K / L Frame | Various | Smaller frames | ❌ Different frame size |
Note: This is a matched Performance Center fire control set — components are designed to work together and should be installed as a complete set for best results. Trigger width (.310") is specific to N Frame revolvers; do not attempt to fit in J or K Frame revolvers. Always confirm your exact model and production date before ordering.
Installation
Complete fire control group replacement requires full disassembly of the lock work, careful fitting of all components, and thorough function testing of DA and SA operation, cylinder timing, and trigger stop adjustment. This is an armorer-level task — we strongly recommend installation by a qualified gunsmith experienced with S&W Performance Center revolvers.
Questions about fitment or compatibility? Call or email us — we're happy to help.