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

Description

The Apex Optic Mount gives you a direct, steel-on-steel interface for mounting compact closed-emitter optics on your FNX-45 Tactical. This mount replaces the factory optic plate and accepts the most proven duty-grade optics on the market. It is machined from a single billet of steel and finished with a black oxide coating for corrosion resistance and a low-glare surface. This is not a polymer spacer or a universal adapter — it is a precision fitment engineered specifically for the FNX-45 Tactical slide.

Compatible optics include the Aimpoint ACRO P-1 and P-2, the Steiner MPS, and the Lead & Steel Pandora PB-3. Each of these optics sits low enough to co-witness with standard-height iron sights, and the steel construction handles the recoil impulse of .45 ACP without flex or failure. The mount attaches directly to the factory optic cut on your FNX-45 Tactical — no slide modification, no gunsmith fitting required.

Specs and fitment:

• Designed exclusively for FNX-45 Tactical model pistols with the factory optic mounting cut
• Direct replacement for the factory optic plate — installs with included hardware
• Mounting screws are pre-treated with thread locker and included with the mount
• If you lose the included screws, standard short 5-40 threaded screws from the FNX-45 Tac factory kit can be substituted
• For the Steiner MPS optic, we recommend pairing this mount with the Apex Super Clamp to expand the clamping range for a secure fit

This mount solves the common problem of aluminum or polymer plates loosening under heavy use. Steel provides a rigid, repeatable zero that holds up to training volume and hard use. It is designed for shooters who run their gear hard — competition shooters who need a consistent return to zero stage after stage, and shooters who build a duty rig around the FNX-45 platform and expect the optic mount to be the last thing they have to check.

The black oxide finish also reduces glare in low-light conditions and resists holster wear better than bare aluminum. At $60, this mount gives you a steel optic interface for less than the cost of most aftermarket trigger upgrades. If you are running an ACRO, MPS, or Pandora on your FNX-45 Tactical, this is the mount that keeps the optic where you set it.