Monstrum Grimlock Red Dot Mount for Mossberg 500/590/835/930 – RMR Footprint

Overview

The Monstrum Grimlock Red Dot Mount is a purpose-built optic base designed to fit Mossberg shotgun platforms. It pairs a low, secure profile with a robust mounting surface to help keep your red dot aligned as you move through varied conditions. The mount is engineered to complement Mossberg receivers, including models like 500, 590, 835, 930, and Shockwave, with a contoured profile that follows the curvature of the receiver for a cohesive look.

Footprint options and compatibility

Choose from three footprint standards to match your sight: RMR, Venom/Docter, or RMSc. This flexibility helps you pair the Grimlock with a wide range of popular red dot sights. Please view the compatibility chart to verify fit with your exact model and dot footprint before purchasing.

Design and fit

The Grimlock Series offers a sleeker, more distinctive silhouette than previous generations. The mount is contoured to the receiver, creating a streamlined appearance and a stable aiming platform that sits close to the bore axis for quick, repeatable sight alignment.

Installation and compatibility notes

Installation is straightforward: the mount attaches directly into the factory mounting holes on the Mossberg receiver using the included set screws. No additional hardware is required, so you can have a reliable optic base in fewer steps.

Durability and guarantee

All Monstrum products are backed by a lifetime guarantee, reflecting a commitment to long-term reliability in the field and at the range.

What you gain

• Compatibility you can trust with Mossberg 500/590/835/930/Shockwave; verify with the compatibility chart before purchase.
• Footprint options include RMR, Venom/Docter, and RMSc to match your preferred sight.
• Sleek, contoured design that follows the receiver for a cohesive look and stable mount.
• Factory-hole installation with included screws; no extra hardware needed.
• Lifetime guarantee for peace of mind and long-term support.

Use-case note

Envision quicker target acquisition in dynamic environments, a lower profile that minimizes snag, and a sturdy optic base you can rely on during repeated mounting and dismounting. The Grimlock mount presents these possibilities without asserting guaranteed results.