Used OEM Mossberg 500 Mainspring Guide - MBU51
$9.99
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Used OEM Mossberg 500 Mainspring Guide - MBU51
$9.99
Used OEM Mossberg 500 Mainspring Guide - MBU51
Used genuine Mossberg mainspring guide for the Model 500 pump-action shotgun fire-control system. This steel component directs mainspring force to the hammer and supports proper hammer function and reliable ignition.
Used OEM condition, inspected for wear and function. Verify the gauge-specific fire-control configuration before ordering.
Model compatibility chart
| Make | Model | Gauge / bore | Fitment |
|---|---|---|---|
| Mossberg | 500 | 12 gauge | Listed application; verify fire-control configuration |
| Mossberg | 500 | 20 gauge | Listed application; verify fire-control configuration |
| Mossberg | 500 | .410 bore | Listed application; verify fire-control configuration |
Part details
- Part number: MBU51
- Component: Mainspring guide
- Manufacturer: Mossberg
- Material: Steel
- Condition: Used OEM
- Weight: 2 ounces
Installation and safety
This is a fire-control component that affects trigger and hammer function. Professional gunsmith installation is strongly recommended. Confirm correct fit, safe operation, and proper function before returning the shotgun to service.
Only the MBU51 mainspring guide is included. Ships to U.S. addresses only.