The Meprolight MPO PRO-F Mounting Plate (Meprolight part no. 901141020) is a direct RMR mounting plate that lets you attach a micro pistol optic to an FN 509 slide. Machined from 6061-T6 aluminum with a matte black Type 2 hard-anodized finish, it creates a solid, direct slide-to-optic connection built to handle recoil without shifting zero. It comes with mode-specific screws that have Loctite pre-applied, so installation is straightforward and the fasteners stay put under recoil.

Key Specifications

• Built for the FN 509, standard frame pistols.
• Provides a direct RMR-footprint optic mounting interface.
• Machined from 6061-T6 aluminum with a matte black Type 2 hard-anodized finish.
• Ships with mode-specific screws with Loctite pre-applied for a secure install.

Frequently Asked Questions

Is this a red dot sight or a mounting plate? It is a direct mounting plate that attaches an RMR-footprint red dot to an FN 509 slide.

What pistol does this plate fit? The FN 509, standard frame.

Buy the Meprolight MPO PRO-F Mounting Plate

Mount a micro red dot directly to your FN 509. Order from Meprolight through our red dot sights selection, with fast, direct shipping from our Lubbock, Texas gun shop.