Vang Comp Rear Sight with RMR Mount for Mossberg Factory Holes (Excludes 590R/590RM)

Precision Rear Sight with Integrated RMR Mount for Mossberg Shotguns

Upgrade your Mossberg with a rugged, low-profile rear sight and optic mounting solution built for real performance. The Vang Comp Rear Sight with Integrated RMR Mount is CNC-machined from billet 6061-T6 aluminum and designed to mount directly to factory-drilled and tapped receivers (excluding 590R and 590RM models).

This setup combines a wing-protected ghost ring rear sight with a direct RMR footprint optic mount, eliminating the need for bulky Picatinny rails. The result is a cleaner profile, improved cheek weld, and faster target acquisition. With precise 1/4 MOA click adjustments for windage and elevation, you get repeatable accuracy while maintaining a dependable co-witness with compatible front sights.

Key Features

Direct fit for Mossberg factory-drilled and tapped receivers (excluding 590R/590RM)
Integrated RMR footprint mount (compatible with Trijicon RMR, RCR, SRO, Holosun 407c/507c/508t, and similar optics)
CNC-machined 6061-T6 aluminum construction
MIL-A-8625 anodized finish for long-term durability
Wing-protected ghost ring rear sight
1/4 MOA click-adjustable windage and elevation
Includes (3) receiver mounting screws and (6) optic mounting screws
Lightweight at 1.7 oz
Low-profile design for improved cheek weld and sight alignment
Made in the USA

Compatibility Notes

Co-witnesses with most standard-height ghost ring front sights
Not compatible with Mossberg 590R, 590RM, SPX models with LPA sights, or Vang Comp VC-103 hole pattern mounts

Installation

Ensure firearm is unloaded and safe before installation.
Clean and degrease receiver mounting holes.
Secure mount using included screws to proper torque specifications.
Blue Loctite 243 recommended (not included).
Install optic per manufacturer torque guidelines.

Additional Notes

Optic not included
Mounting hardware is designed for pump-action Mossberg shotguns
Professional gunsmith installation recommended for semi-auto models

Built on decades of Vang Comp innovation, this system combines proven iron sight durability with modern red dot performance, giving your Mossberg a streamlined, reliable upgrade without compromise.