Smith & Wesson J Frame .086" Rear Sight Blade | Factory New OEM Part 037950000
Smith & Wesson J Frame .086" Rear Sight Blade — Factory New OEM Part #037950000
This listing is for one (1) factory new Smith & Wesson OEM rear sight blade, Part #037950000, in .086" height for J Frame revolvers with adjustable rear sights.
The rear sight blade is the replaceable blade insert that fits into the adjustable rear sight body, providing the rear aiming reference for the sight picture. The .086" blade is the narrowest standard J Frame blade height, typically specified for shorter barrel rimfire models where a lower sight blade compensates for the higher bore line at close range. This is a genuine Smith & Wesson factory part manufactured to original specifications.
Important: This rear sight blade only fits J Frame revolvers equipped with an adjustable rear sight. Fixed-sight J Frame models (e.g., 36, 37, 38, 42, 442, 637, 638, 640, 642, 649) do not have an adjustable rear sight body and cannot use this blade. Verify your revolver has an adjustable rear sight before ordering.
Not sure which blade height you need? See our S&W Revolver Rear Sight Blade Height Chart to select the correct blade for your specific model and barrel length.
Specifications
- Brand: Smith & Wesson
- Part Number: 037950000
- Condition: Factory New
- Blade Height: .086"
- Frame: J Frame
- Sight Type: Adjustable Rear Sight Blade
- Part Type: Rear Sight Blade
Model Compatibility (Adjustable Sight J Frame Models Only)
| Model | Caliber | Barrel Length | Blade Height | Compatible |
|---|---|---|---|---|
| Model 34 | .22 LR | 2" & 4" | .086" | ✓ Yes |
| Model 43 | .22 LR | 3.5" | .086" | ✓ Yes |
| Model 51 | .22 WMR | 3.5" | .086" | ✓ Yes |
| Model 63 | .22 LR | 3" & 5" | .086" | ✓ Yes |
| Model 317 (adjustable sight variant) | .22 LR | 1.875" & 3" | Verify | ✗ Verify — confirm blade height needed |
| Fixed-sight J Frame (36, 37, 38, 42, 442, 637, 638, 640, 642, 649) | Various | Various | N/A | ✗ No — no adjustable rear sight |
Note: Part #037950000 (.086" blade) is confirmed for J Frame adjustable-sight rimfire models as shown above. Per the S&W Rear Sight Blade Height Chart, the .086" blade is the specified height for 2"–4" barrel Models 34, 43, 51, and 63. See the Blade Height Chart to confirm the correct height for your model and barrel length before ordering. Installation by a qualified gunsmith with a sight pusher tool is recommended.
Need Other Blade Heights?
- See all available J, K, L, N Frame rear sight blade options and use our S&W Revolver Rear Sight Blade Height Chart to find the correct height for your specific model and barrel length.