Mesa Tactical SureShell Polymer Carrier with RMR Mount for Benelli M4 – 12 Gauge

The Mesa Tactical SureShell Polymer Carrier with RMR Mount is a side saddle shell carrier that attaches to Benelli M4 shotguns, holding six 12-gauge shells in secure polymer loops while providing an integrated mount for a Trijicon RMR or similar compact reflex sight. This dual-purpose rail system increases ammunition capacity by six rounds and positions a red dot at co-witness height, eliminating the need for aftermarket optic mounts or gunsmithing modifications to the receiver.

Constructed from reinforced polymer with a steel mounting plate, the carrier installs using the existing receiver pins on the Benelli M4—no permanent modification required. The integrated RMR mount accepts any optic with the Trijicon RMR footprint. Shell retention is secure during movement but allows quick access with practice. This is a drop-in installation for users comfortable with basic disassembly, though professional installation is recommended if unfamiliar with receiver pin removal.

• Part Type: Side Saddle Shell Carrier with Optic Mount
• Compatible Firearms: Benelli M4
• Gauge: 12 Gauge
• Shell Capacity: 6 rounds
• Optic Mount: Trijicon RMR footprint
• Material: Reinforced polymer with steel mounting plate
• Installation: Drop-in using existing receiver pins (basic disassembly required)
• Includes: SureShell carrier with integrated RMR mount, mounting hardware