Springfield Armory Agency Optic System Mounting Plate 1911 DS for Holosun 509 Black

The Springfield Armory Agency Optic System mounting plate for 1911 DS handguns brings slide-mounted optic capability to one of the most storied platforms in defensive and competitive shooting. Developed in partnership with Agency Arms, this AOS (Agency Optic System) plate is purpose-built for the 1911 DS and engineered to mount the Holosun 509 red dot with the proper sight picture and rapid target acquisition you need on the defensive line or at the range. Whether you're upgrading a carry gun or building a competition rig, this mounting solution delivers the modern optics advantage without compromising the 1911's inherent reliability.

Machined from billet steel, the plate is designed for durability and precision fit. It features an integral rear sight, so you're not simply bolting on a sight tower—you're getting a cohesive system that maintains the lines and handling of your 1911 while adding the speed of a modern red dot. The plate ships with the screws needed to mount it directly to your 1911 DS slide, making installation straightforward for gunsmiths and home builders alike.

If you're running a 1911 DS and want to move beyond iron sights or legacy optic footprints, the Agency Optic System plate is a no-compromise choice. It's the kind of upgrade that respects the gun's heritage while embracing what works in modern shooting sports and self-defense.

Key Features

• Purpose-built for 1911 DS handguns and Holosun 509 optics
• Billet steel construction for strength and precision
• Integral rear sight integrated into the mounting plate design
• Optimized optic height for intuitive sight picture and target acquisition
• Includes mounting screws for direct installation to slide

Specifications

Frequently Asked Questions

What optic does this mounting plate fit?

This Agency Optic System plate is designed to mount the Holosun 509 red dot on a 1911 DS slide.

Does it include everything I need to install it?

Yes. The plate ships with the screws required to mount it directly to your 1911 DS slide.

What is the integral rear sight for?

The plate features an integral rear sight as part of its design, so you have a backup sight built into the mounting system itself.

Is this compatible with other 1911 models or optics?

No. This Agency Optic System plate is designed exclusively for the 1911 DS and the Holosun 509. Always verify compatibility before purchase.