Grovtec Mtmx3 Extended Mag 12 - Tube Mount Mossberg/rem 1100

The Grovtec MTMX3 Extended Mag 12 Tube Mount is a versatile sling and accessory attachment system designed for serious shotgun operators running Mossberg 500, 835, 590, 930, 935, or Remington 1100 platforms in 12 gauge. Built by GrovTec—a name trusted in law enforcement and military circles—this rail adapter transforms your shotgun's magazine tube into a platform for tactical modularity. Whether you're running three-gun competitions, tactical training evolutions, or duty applications, this mount eliminates the need for permanent modifications while providing three distinct mounting options.

The MTMX3 achieves its flexibility through three integrated mounting systems: a Picatinny rail for optics and accessories, a push-button base for quick-detach slings, and a standard slot for traditional sling attachment points. This tri-mount design means you can configure your shotgun for different missions without swapping hardware—critical in dynamic shooting environments where setup time directly impacts performance. The aluminum construction keeps weight minimal at just 0.22 lbs, preserving the natural balance of your shotgun while adding genuine utility. The compact footprint (2.85 x 1.15 x 5.3 inches) ensures the mount doesn't obstruct your sight picture or interfere with pump operation, a detail that separates thoughtful tactical design from aftermarket clutter.

Operators managing multiple shotgun platforms or those transitioning between duty and competition quickly appreciate the MTMX3's simplicity—no gunsmithing, no permanent alterations, and compatibility across the industry-standard Mossberg and Remington lineups. Installation requires basic mechanical aptitude and minimal tools, making it accessible to both armorers and end-users. If your shooting discipline demands modular sling systems, integrated accessories, or the ability to run both traditional and modern attachment points, this GrovTec mount delivers proven reliability without compromise.