Apex Optic Mount for FNX-45 – ACRO/MPS* Optics

Description

The Apex Optic Mount for the FNX-45 Tactical is a direct-fit steel adapter plate designed to securely mount compact red dot optics on your factory-cut slide. Machined from a solid billet of steel and finished with a black oxide coating, this mount is built to handle the harsh conditions of an Arizona desert shooter: extreme heat, blowing dust, and high round counts. It holds zero reliably under sustained fire and won’t deform or crack under thermal stress.

This mount is specifically engineered for the FNX-45 Tactical model only. It mounts directly to the factory optic cut on your slide using the included screws, which come with thread locker pre-applied for a secure, vibration-resistant fit. If you misplace the Apex screws, you can substitute the short 5-40 threaded mounting screws that originally shipped with your FNX-45 Tac.

Compatible Optics:

• Aimpoint Acro P-1 & P-2
• Steiner MPS
• Lead & Steel Pandora PB-3

Key Benefits for the Desert Shooter:

• Heat & dust resistant: Steel construction prevents warping in direct sun or hot chambers, and the black oxide finish resists corrosion from sweat, dust, and cleaning solvents.
• Suppressor-friendly: Low-profile design keeps the optic as close to the bore axis as possible, maintaining your iron sight co-witness and clearing suppressor-height sights.
• Secure clamping for MPS optics: For the Steiner MPS, we strongly recommend pairing this mount with the Apex Super Clamp to expand the clamping range and ensure a tight, repeatable lock-up.
• Drop-in installation: No filing, fitting, or gunsmithing required. Remove your factory cover plate, position the mount, and torque the included screws to spec.
• Cost-effective upgrade: At $60, this mount gives you a steel foundation for your Acro or MPS without the premium price of custom milling. It keeps your FNX-45 ready for high-dust environments and hard use.

The mount ships with all necessary hardware: optic plate mounting screws with pre-applied thread locker. It is designed exclusively for the FNX-45 Tactical slide — it will not fit standard FNX-45 or other pistol models. If you run an Acro P-2, Steiner MPS, or Pandora PB-3 on your FNX, this is a direct, rugged solution that stands up to Arizona heat and heavy shooting sessions.