Does a Trijicon RMR-footprint red dot fit a Aimpoint ACRO slide cut? Will not fit. Why, and the plate or optic to use instead.

Updated 05 September 2026.

Scope Mount Finder / Every rail, tube and red-dot footprint

Will a Trijicon RMR optic fit a Aimpoint ACRO slide cut?

Name: Will a Trijicon RMR optic fit a Aimpoint ACRO slide cut?: published specification
Creator: Scope Mount Finder
License: https://creativecommons.org/licenses/by/4.0/

A Trijicon RMR-cut optic on a Aimpoint ACRO slide: whether it fits, why, and what to buy so the dot seats square.

Will not fitA Trijicon RMR-footprint optic will not fit a Aimpoint ACRO slide cut. The RMR screws down over two posts; an ACRO slide expects a clamped ACRO plate, so an RMR will not mount to it. Use an ACRO/Steiner MPS optic for that slide, or an RMR-cut slide.

Fit readoutBench figures

Fitment

Optic footprint

Trijicon RMR

Slide cut

Aimpoint ACRO

Result

not compatible

What to use

an ACRO/Steiner MPS optic for that slide, or an RMR-cut slide

What to fit it with

Shop Aimpoint ACRO red dot mounting plate on Amazonaffiliate Find Aimpoint ACRO red dot mounting plate on eBayaffiliate Shop Trijicon RMR red dot mounting plate on Amazonaffiliate Find Trijicon RMR red dot mounting plate on eBayaffiliate

This is the pistol-slide question: your optic is cut for the Trijicon RMR footprint, and the slide in front of you is milled for the Aimpoint ACRO pattern. The RMR screws down over two posts; an ACRO slide expects a clamped ACRO plate, so an RMR will not mount to it.

Match the optic to the cut instead of forcing it. An acro/steiner mps optic for that slide, or an rmr-cut slide keeps the sight seated square so it holds zero under slide cycling.

Related fitments

›Trijicon RMR footprintthe optic cut
›Aimpoint ACRO footprintthe slide cut
›Red-dot footprints explainedmatch a dot to a cut

Questions and answers

Will a Trijicon RMR optic fit a Aimpoint ACRO slide cut?

A Trijicon RMR-footprint optic will not fit a Aimpoint ACRO slide cut. The RMR screws down over two posts; an ACRO slide expects a clamped ACRO plate, so an RMR will not mount to it. Use an ACRO/Steiner MPS optic for that slide, or an RMR-cut slide.