Smith & Wesson J Frame Model 43 Airweight Hammer
Factory Part Number: 112-43H | Condition: Used OEM
Key Specifications
- Width: .375" (Standard Airweight Profile)
- Caliber Compatibility: .22 Long Rifle
- Frame Type: J Frame (Small Frame)
- Model Compatibility: Model 43, .22/.32 Kit Gun Airweight
- Condition: Used, Fully Functional Factory Part
- Origin: Genuine Smith & Wesson OEM Component
Compatibility & Fitment
This hammer is specifically engineered for the Smith & Wesson J Frame Model 43 in .22 Long Rifle. The Model 43 is part of S&W's legendary Airweight series, designed as a lightweight kit gun for outdoorsmen and target shooters.
Compatible Models:
- Smith & Wesson Model 43 (.22 LR Airweight)
- J Frame .22/.32 Kit Gun variants with .375" hammer specification
How to Identify Your Model: Swing out the cylinder and check behind the yoke on the frame for the model number. Model numbers began in 1957-58. If no model number is present, your revolver may pre-date this system—contact us with your serial number for compatibility verification.
Why This Part Solves Your Problem
If your Model 43's hammer is worn, damaged, or causing light primer strikes, this genuine factory replacement restores your revolver to original specifications. Unlike aftermarket alternatives, this OEM part ensures:
- Perfect Fit: Manufactured to Smith & Wesson's exact tolerances
- Reliable Ignition: Proper geometry for consistent primer strikes
- Authentic Profile: Maintains the classic Airweight .375" width
- Drop-In Compatibility: Designed for your specific frame and action
Ideal For
- Gunsmiths performing Model 43 restorations or repairs
- Collectors maintaining authentic S&W J Frame revolvers
- Shooters experiencing hammer-related malfunctions
- Owners of vintage .22 LR Kit Guns seeking OEM replacement parts
What Sets This Part Apart
- Genuine Smith & Wesson Factory Part: Not a reproduction or aftermarket substitute
- Used OEM Quality: Authentic factory component at a fraction of new cost
- Verified Compatibility: Guaranteed fit for Model 43 specifications
- Specialist Sourcing: Hard-to-find part for discontinued models
Installation Requirements
Gunsmith Recommended: This part requires disassembly of the revolver's action and proper fitting by a qualified gunsmith. Installation involves timing, hand fitting, and function testing to ensure safe operation.
Factory replacement parts are manufactured to exact specifications and tolerances using the same materials as original components.
About the Smith & Wesson Model 43
The Model 43 is a classic J Frame hand-ejector revolver chambered in .22 Long Rifle. Part of the Airweight series, it features an aluminum alloy frame for reduced weight, making it an ideal kit gun for hiking, camping, and small game. The hand-ejector design allows the cylinder to swing out to the left for quick loading and ejection.