Description
The Mesa Tactical SureShell brings professional-grade shell storage to your Mossberg 500 with a practical two-piece design. The glass-filled polymer yokes keep weight down while the aluminum backing plate provides solid mounting security using the receiver's existing drilled holes. Everything needed for installation ships in the box, and no gunsmithing is required.
Secure Shell Retention You Can Count On
The dual rubber friction system does the heavy lifting here. Black rubber comes installed for standard shells, but Mesa Tactical includes white rubber replacements in case you're running specialty ammunition. Shells load and unload smoothly without bouncing loose during recoil or movement. The system works whether you're loading from the top or bottom of each carrier slot, giving you flexibility when you need it most.
Picatinny Rail for Tactical Flexibility
The integrated 4.75-inch Picatinny rail runs along the top, meeting full MIL-STD-1913 specifications. This isn't just extra hardware bolted on. It's machined from aircraft-grade aluminum and hard anodized to military specs, so you're getting a durable mounting platform that works with industry-standard optics and accessories. The rail sits far enough forward that factory bead sights continue working without interference.
Made for the 500, Built to Last
Mesa Tactical manufactures everything in the USA. The polymer construction saves weight without sacrificing performance, while the aluminum components handle the shock and stress that shotgun recoil dishes out. It mounts cleanly to the left side of the receiver and includes protective rubber gaskets to keep your shotgun's finish safe. The entire assembly is backed by Mesa Tactical's lifetime warranty on materials and workmanship.
Key Specifications
- Manufacturer: Mesa Tactical
- Model: SureShell
- Manufacturer Part Number: 94880
- UPC: 878405004424
- Compatible With: Mossberg 500, 590, Maverick 88
- Gauge: 12-gauge
- Shell Capacity: 6 rounds
- Material – Shell Holders: Glass-filled polymer
- Material – Backplate: Aluminum
- Material – Picatinny Rail: Aircraft-grade 6061-T6 aluminum
- Rail Length: 4.75 inches
- Rail Standard: MIL-STD-1913 Picatinny
- Retention System: Dual rubber friction
- Finish: Matte black hard anodized
- Installation: No gunsmithing required
- Country of Origin: USA
What’s Included
- SureShell polymer shell carrier with 6-round capacity
- 4.75-inch Picatinny rail mounting system
- Aluminum backplate with brass threaded inserts
- Black rubber friction inserts
- White rubber friction inserts (replacement set)
- All mounting hardware
- Protective rubber gaskets
Frequently Asked Questions
Will this SureShell saddle work with my factory forend?
Most factory Mossberg 500 forends overlap the receiver when the bolt cycles back, which will interfere with the side saddle. You'll need either a tactical forend designed for side saddles or to cut down your factory forend appropriately. Measure the overlap on your specific gun before installation to be sure.
Do I need any tools or gunsmithing experience to install the SureShell?
No. Mesa Tactical includes all required mounting hardware and protective gaskets. The system uses the Mossberg's existing drilled mounting holes, so installation is straightforward without any permanent modifications to your shotgun.
What's the difference between the black and white rubber inserts?
The black rubber provides standard retention and comes installed on your saddle. The white rubber is a harder material included as replacements for specialty shells or if you prefer stiffer retention. Both are compatible with 12-gauge shells.
Can I mount a red dot or light on the integral rail?
Yes. The Picatinny rail meets full MIL-STD-1913 specifications and accepts any standard Picatinny-mounted accessories like red dots, lights, or magnified sights. The rail is high enough that factory bead sights still function without obstruction.



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