Mesa Tactical 6-Shell Side Saddle 12ga On-Gun Shotshell Carrier - Model 90880

The Mesa Tactical 6-Shell Side Saddle 12ga On-Gun Shotshell Carrier (Model 90880) is a lightweight aluminum shell holder designed to keep extra shotshells accessible on your shotgun's receiver for quick tactical reloads. Built for 12-gauge ammunition, this sidemount carrier positions shells on the left side of the gun where you need them most—whether you're running a defensive shotgun course, hunting in the field, or training at the range. The unique internal Santoprene elastomer rib secures each shell firmly in place, holding everything from light target loads to heavy slugs steady even during aggressive movement or hard recoil.

Mesa Tactical engineered this carrier with steel-on-threaded adapters that replace your shotgun's trigger group pins, anchoring the shell holder directly to the receiver for rock-solid stability. Installation hardware, tools, and detailed instructions are included. The 6-round capacity strikes a practical balance between extra ammo capacity and minimal weight penalty. If you're running a Remington 870, note that a tactical-length (shortened) forend is required to clear the carrier during operation—standard-length factory forends won't fit.

This is purpose-built gear for shooters who've learned that keeping rounds on the gun beats fumbling for a reload from a pouch. It's the kind of no-nonsense accessory that proves its worth the moment you need it.

Key Features

• 6-shell capacity for 12-gauge ammunition
• Rugged aluminum construction keeps weight minimal
• Santoprene elastomer rib retains shells securely during movement and recoil
• Mounts to receiver via steel-on-steel threaded adapters replacing trigger group pins
• Left-side sidemount positioning for natural access
• All installation hardware, tools, and instructions included
• Handles light target loads through heavy slugs reliably

Specifications

Frequently Asked Questions

Does the Mesa Tactical 6-shell carrier work with a Remington 870?

Yes, it fits Remington 870 shotguns, but you'll need a tactical-length (shortened) forend to accommodate the carrier. Standard factory-length forends will not work with this model.

Will this carrier hold slugs securely?

Absolutely. The internal Santoprene elastomer rib is designed to retain heavy slug shells as reliably as lighter target loads, even during vigorous movement or hard recoil.

What's included in the box?

The carrier comes with all necessary installation hardware, tools, and detailed instructions for mounting to your shotgun.

How does it attach to the shotgun?

The carrier uses steel-on-steel threaded adapters that replace your shotgun's trigger group pins, anchoring it solidly to the receiver.