For Trijicon RMR – Apex Optic Mount Screw Set for FN MRD Pistols with an Apex mount for RMR Footprint Optics

Description

Your red dot is only as reliable as the screws that hold it down. That’s why this Apex Optic Mount Screw Set exists: to keep your Trijicon RMR or any RMR-footprint optic locked tight on your FN MRD pistol. At just $20, it’s a small investment that prevents a big headache — no stripped threads, no loose optics, no zero wandering when you need it most.

Designed specifically for FN MRD handguns (including the FN 509 series, FN 510, and FN 545) that use an Apex optic mount, this set includes the exact screws you need for a secure, corrosion-resistant fit. Living on the Florida coast means humidity, salt air, and sweat are part of your daily carry reality. These screws are built to resist rust and degradation, so your setup stays solid through beach trips, rainy ranges, and everyday EDC sweat.

Key benefits for your carry gun:

• Precision fit for FN MRD + Apex mounts — no guesswork, no filing, no shims. These screws are machined to match the thread pitch and length required by Apex’s mounting system for FN pistols with MRD slides.
• Corrosion-resistant finish — stands up to Florida’s humid climate and salt exposure. No more worrying about screws seizing or rusting inside your slide.
• Reduces optic shift — proper screw engagement keeps your RMR zeroed shot after shot. That matters when your optic is your primary sighting system on a defensive carry gun.
• Simple, drop-in installation — use the included screws with the correct torque (we recommend a quality inch-pound driver) and you’re done. No need to buy extras or hunt for specialty hardware.
• Cost-effective reliability — replacing worn or mismatched screws for $20 is far cheaper than damaging your slide or losing an optic mid-range session.

Specs and fitment details:

• Compatible with: Trijicon RMR, Holosun 507C/407C, and all optics sharing the RMR footprint — when used with an Apex optic mount on an FN MRD pistol.
• Pistol fitment: FN 509 series (all variants), FN 510, FN 545, and any FN MRD slide that accepts an Apex mounting plate.
• Mount requirement: Must use an Apex brand optic mount for RMR footprint optics. Not designed for factory FN mounting plates or other aftermarket brands.
• Material: Hardened steel with a corrosion-resistant coating.