The Mesa Tactical SaddleRail 4 MOS is a Picatinny rail mount designed for Mossberg 500 and 590 series 12-gauge shotguns.
- Part Type: Receiver Rail Mount
- Compatible Firearms: Mossberg 500/590 Series 12 Gauge
- Material: 6061-T6 Aluminum
- Finish: Matte Black Hard Anodized
- Rail Slots: 4-Slot Picatinny
- Installation: Requires Fitting and Proper Alignment
- Includes: Mounting Hardware
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