Smith & Wesson J Frame Model 342 AirLite Concealed Hammer - Used
This listing is for a used Smith & Wesson J Frame Model 342 AirLite concealed (shrouded) hammer. Factory OEM part sold as-is.
The Model 342 AirLite is S&W's ultra-lightweight Centennial-style J Frame, featuring a fully concealed hammer that makes it snag-free for pocket and concealed carry. This used factory concealed hammer is the correct OEM replacement for gunsmiths servicing the 342's action — maintaining the smooth, double-action-only profile that defines the Centennial design.
Part Details
- Part Number: J774
- Condition: Used
- Part: Concealed / Shrouded Hammer
- Fits: Smith & Wesson J Frame Model 342 AirLite
- Caliber: .38 Special / .38 Special+P
- Frame: J Frame (Aluminum / AirLite)
- Style: Centennial (hammerless / shrouded hammer, DAO)
- OEM: Smith & Wesson Factory Part
Model Compatibility
| Model | Frame | Caliber | Hammer Style | Compatible |
|---|---|---|---|---|
| Model 342 AirLite | J Frame (Aluminum) | .38 Special+P | Concealed | ✅ Yes |
| Model 342PD AirLite | J Frame (Scandium) | .38 Special+P | Concealed | ⚠️ Verify fitment |
| Model 442 | J Frame (Aluminum) | .38 Special+P | Concealed | ⚠️ Verify fitment — similar Centennial |
| Model 642 | J Frame (Aluminum) | .38 Special+P | Concealed | ⚠️ Verify fitment — similar Centennial |
| Model 340 AirLite | J Frame (Scandium) | .357 Mag | Concealed | ❌ No — different frame/caliber |
| Model 36 / 60 / 37 | J Frame (Steel) | .38 Spl / .357 Mag | Exposed | ❌ No — exposed hammer models differ |
Important: Concealed hammers are specific to Centennial-style (DAO) J Frame models and are NOT interchangeable with exposed-hammer J Frame models (e.g., Model 36, 60, 37). AirLite aluminum-frame hammers may also differ from steel-frame Centennial hammers. Always confirm your exact model and dash number before ordering. To find your model number, swing out the cylinder and check behind the yoke on the frame.
Installation
Disassembly and reassembly by a qualified gunsmith is required. Some parts may require fitting. Factory replacement parts are manufactured to the same specifications, tolerances, and materials as the originals.
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