EGW Mossberg Late-Model Picatinny Rail Mount for 500/590/835/930/935 | USA Made

Overview

Upgrade your Mossberg with EGW’s late-model Picatinny rail mount. Precision machined from domestic 6061-T6 extruded aluminum, this mount blends rugged strength with lightweight handling. The matte black finish reduces glare and complements standard shotgun components, while the full-length cross slots provide flexible attachment options for rings and accessories.

Compatibility and fit

The late model version is drilled for 8-40 screws, while the pre-1997 option uses 6-48 screws. Designed for Mossberg 500 receivers after 1997, the mount sits at about 0.4 inches high and spans 5.882 inches in total length. The center-to-center distance between the two middle holes is 2.125 inches, offering a practical footprint for accessory layouts.

Design, weight, and durability

With a center channel that helps reduce mass, this one-piece base typically weighs 2–3 ounces. The design accommodates both Picatinny and Weaver rings, and in many cases will not interfere with factory iron sights. After machining, the mount is tumbled, sand blasted, and finished with Type II anodizing for long-lasting durability. All components and packaging are proudly made in the USA.

Key benefits and practical use

• Full-length Picatinny cross slots for versatile rings and accessory mounting
• Lightweight design without compromising rigidity or reliability
• Compatibility with Picatinny or Weaver scope rings for flexible setups
• Maintains compatibility with many factory iron sights in typical configurations

Mounting, hardware, and setup

Hardware is included: hex head screws and a wrench. EGW recommends torquing to 20 inch-pounds and using a small amount of blue Loctite for secure installation. For those who prefer a customized look, standard silver anodizing is available on request for an additional charge, with an approximate three-month lead time.

Why choose EGW

EGW’s manufacturing process leverages USA-made Fadal machining centers to produce consistent, precise bases. The result is a robust, repeatable mounting solution designed for hunters and tactical shooters who value dependable performance, straightforward installation, and long-term durability. While individual outcomes vary, this rail mount offers potential flexibility for mounting optics and accessories on post-1997 Mossberg models.