Description
The Apex Optic Mount delivers a direct, secure mounting solution for ACRO-pattern optics on FN 509 models equipped with the FN Low Profile Optics Mounting System™. Machined from a single billet of steel with a black oxide finish, this mount is built for the demands of duty rigs and competition circuits where optic failure is not an option.
Key benefits for serious shooters:
- Eliminates plate stacking. The integrated locking key mounts directly to your FN 509 slide without needing an MRD Insert. No more shims, adapters, or extra points of failure between you and your optic.
- Steel construction. Billet steel beats aluminum for shear strength and long-term retention under recoil. The black oxide finish resists corrosion and reduces glare in low-light conditions.
- Direct slide interface. Bypass the factory mounting plate system entirely. This mount seats into the slide’s low-profile cut, keeping your optic as low as possible for a co-witness with iron sights.
Optic compatibility:
- Aimpoint Acro P-1 & P-2
- Steiner MPS
- Lead & Steel Pandora PB-3
- Any optic with an ACRO footprint
Fitment notes: Designed exclusively for FN 509 models with the FN Low Profile Optics Mounting System™. If you are running a Steiner MPS, we recommend pairing this mount with the Apex Super Clamp to expand the clamping range and ensure a rock-solid grip on the optic body.
Specs: Material: Billet steel. Finish: Black oxide. Weight: Minimal — adds negligible mass to your slide. Installation: Direct mount to factory slide cut; no MRD insert required. Price: $60.
Whether you are building a carry rig, tuning a match gun, or upgrading a patrol sidearm, this mount removes the weak points in your optic interface. No stacking, no adapters, no guesswork. Just a steel bridge between your slide and your sight.
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