S&W J Frame Model 642-2 Airweight Trigger Lever (MIM) .38 Special +P – Part# 642M
$12.99
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S&W J Frame Model 642-2 Airweight Trigger Lever (MIM) .38 Special +P – Part# 642M
$12.99
Smith & Wesson J Frame Model 642-2 Airweight Trigger Lever (MIM) – Stainless Steel
Restore smooth, reliable trigger function on your Model 642-2 Airweight with this factory-original MIM trigger lever. The trigger lever (also called the trigger/hand lever or stirrup) is the internal linkage component that connects the trigger to the hand, transferring trigger movement into cylinder rotation — a worn or damaged lever causes erratic cylinder indexing or failure to rotate. This MIM (Metal Injection Molded) stainless steel part is the correct factory replacement for the J Frame Model 642-2 chambered in .38 S&W Special +P.
- Part Number: 642M
- Fits: Smith & Wesson J Frame Model 642-2 Airweight
- Caliber: .38 S&W Special +P
- Part Type: Trigger Lever (Trigger/Hand Lever)
- Material: MIM (Metal Injection Molded)
- Finish: Stainless Steel
- Condition: Used (factory original)
- Installation: Professional gunsmith fitting required – trigger lever timing is critical for reliable cylinder rotation
About MIM Parts
Metal Injection Molding (MIM) is a precision manufacturing process used by Smith & Wesson and other major firearms manufacturers to produce complex internal components with tight tolerances and consistent quality. MIM parts are genuine factory components — not aftermarket substitutes — and meet the same specifications as traditionally machined parts.
Factory Replacement Quality
Genuine Smith & Wesson factory part manufactured to the exact specifications and tolerances of the original — same dimensions, same engagement geometry, same reliable trigger-to-cylinder linkage. No aftermarket substitutes.
Finding Your Model Number
Swing out the cylinder and check behind the yoke on the frame. Model numbers have been stamped there since 1957–58. If your revolver has no model number, it predates that era — contact us with the serial number and we'll help identify the correct part.
Questions? Call or email us — we're happy to help you get the right part the first time.