Apex Optic Mount for ACRO/MPS* to Glock MOS Pistols

Steel optic mount for adapting ACRO, MPS, and PB-3 footprint optics to Glock MOS slides. Machined from billet steel with black oxide finish, this component replaces the factory MOS cover plate to provide a secure mounting surface for enclosed emitter optics. Solves the fitment gap between the Glock MOS cut and optics using the ACRO footprint—no adapter plates, no shimming.

Compatibility

• Firearms: Glock 17/19/34/45 MOS, Glock 19X MOS, Glock 40/41 MOS, Glock 20/21 MOS (all generations with factory MOS cut)
• Optics: Aimpoint ACRO P-1, ACRO P-2; Steiner MPS; Lead & Steel Pandora PB-3
• NOT compatible with non-MOS slides, aftermarket milled slides without MOS cut, or RMR/Doctor/Noblex footprint optics

Key Features

• Billet steel construction, black oxide finished
• Direct replacement for factory MOS cover plate – no adapter required
• Mounting screws included (M3x0.5, 8mm length)
• Maintains factory iron sight plane – no rear sight relocation needed
• Manufactured in the Free State of Arizona

Install Difficulty: 2/5

Requires: Torque driver (15 in-lb), #6 hex bit or T10 Torx (depending on screw head), degreaser for slide surface. Remove factory MOS plate, clean slide recess, apply light thread locker to screws, torque to spec. No gunsmithing required.

FAQ

Will this mount work on a Glock 43X/48 MOS?

No. The 43X/48 MOS uses a different slide cut (Shield RMSc footprint). This mount is designed for full-size and compact Glock MOS slides only.

Can I use this with a Holosun HE509T?

No. The 509T uses the Holosun K footprint, not the ACRO/MPS/PB-3 pattern. This mount only fits optics with the Aimpoint ACRO footprint.

Does this mount require suppressor-height sights?

It depends on your optic deck height and existing iron sights. With the ACRO P-2 or Steiner MPS, standard-height sights typically co-witness at lower 1/3. With the Pandora PB-3, factory Glock sights may clear. Test your setup before relying on backup irons.

Ships same business day if ordered before 2pm MST. Backed by Apex Tactical’s limited lifetime warranty against manufacturing defects. Mounting screws included.