The ProMag Archangel 7rd 12 gauge shell carrier attaches to the side of the Remington 870 receiver and delivers quick, reliable ammo access with a dedicated retention adjustment system that lets you fine tune tension for each shell and ammunition type, while a rubber molded gasket sits between the mount and the receiver to protect the firearms finish. Crafted from durable polymer with an aluminum mounting plate, this 7-round shell holder integrates seamlessly with Rem 870 setups and is designed so the carrier will not contact or interfere with the pump action forend when using military length forends, ensuring smooth operation in the field or on the range. Made in the USA, the Archangel carrier provides secure shell retention and streamlined loading for fast follow-up shots, making it a practical upgrade for hunters who value adaptable load management, competitive shooters seeking reliable side-mounted storage, and shooters who want a robust, field-ready solution that preserves the firearms balance and handling.