Monstrum Grimlock Picatinny Rail Mount for Remington 870 Shotgun

Overview

The Monstrum Grimlock Picatinny Rail Mount offers a purpose-built optic base for Remington 870 shotguns. It aligns with this platform’s factory mounting layout, giving you a solid foundation for sights without modifying the firearm. Keep in mind that only certain Remington 870 models come drilled and tapped from the factory; others may require a gunsmith to add the mounting holes.

Design and Fit

The Grimlock series introduces a sleeker, more distinctive silhouette compared to previous generations. The mount is contoured to the curvature of the receiver, delivering a seamless profile that respects the shotgun’s lines while keeping the loading area accessible. It supports red dots and optics that use the Picatinny 1913 or Weaver mounting standards, enabling a wide range of sighting options without sacrificing compatibility with other accessories.

Installation and Compatibility

Installation is designed to be straightforward: the mount drops into the factory mounting holes on compatible Remington 870 receivers using the included set screws. No additional hardware is required for installation on supported models. If your specific model isn’t factory drilled and tapped, a gunsmith can prepare the receiver so you can enjoy a stable optic platform with the Grimlock mount.

Key benefits include a stable optical platform, a streamlined silhouette that minimizes snag risk, and broad compatibility with common sighting standards. All Monstrum products come with a lifetime guarantee, underscoring a commitment to long-term satisfaction and reliability.

What you can mount

• Red dot sights and compact optics using Picatinny 1913 or Weaver bases
• Additional sighting options that rely on a factory-mount foundation
• Clear sight lines that preserve access to the receiver and action

Real-world use and scenarios

Think about quick target acquisition during dense brush, or keeping a reliable backup sighting option at the range. The Grimlock mount aims to deliver a balanced, repeatable platform that enhances confidence during practical shooting scenarios, hunting excursions, or training sessions. Its contoured design and solid base help you focus on aim and rhythm rather than equipment fitment.