Does the Steiner MPS fit the Staccato P?
Page last updated . Data compiled September 2026 by the site administrator.
Yes, with an adapter plate: the Staccato → ACRO / MPS from Dawson Precision.
Adapter plate required
Enclosed emitterThe slide isn't cut for this pattern. One plate adapts it, listed below. The plate gives the optic's clamp a rail to grip.
- Staccato → ACRO / MPSDawson Precision ↗$25–60
What to buy
- Optic
- Steiner MPS ($450–650)
- Plate
- The Staccato → ACRO / MPS, from Dawson Precision ($25–60).
- Screws
- Cross-bolt clamp, from the optic's or plate's box. Blue threadlocker, never red.
- Iron sights
- Standard-height irons: no co-witness, typically (not a rule). Suppressor-height irons: low at best (estimated, why).
- All in
- $475–710 approximate street prices, September 2026
Same answer forThe Steiner MPS goes on the Staccato C2, Staccato XC and Staccato XL the same way: they share this slide's optic cut.
SlideStaccato / 2011 optic plate system
Optic footprintAimpoint ACRO
Optic screwsCross-bolt clamp · T10 / hex per model
Optic torqueper Aimpoint manual
Plate to slideper plate instructions
Cost to mount$475–710
New to red dots? What footprint, plate, co-witness and the rest mean
Will your iron sights co-witness?With standard-height irons: No co-witness. Standard-height irons sit well below any pistol red dot window and are only usable with the optic off. Suppressor-height sights fix that; a different optic won't. Little or no data: no sight maker publishes co-witness heights for standard-height irons with this pair, so "no co-witness" is the typical case, not a rule. Some optics still show factory-height irons in the lower third or lower fifth of the window, so check your own front sight against the window before you rely on it.With suppressor-height irons: Low at best. An enclosed emitter on a plate sits tall, so suppressor-height irons land at the very bottom of the window or below it: Night Fision lists its .290 in front sight as a lower 1/5 co-witness for an ACRO P-2 on GLOCK's MOS plate, and taller optics lose them. Sights taller than suppressor height are the usual fix. Estimated: no sight maker publishes heights for this pair, so that's the typical case for this kind of optic, not a guarantee: pistols don't standardize sight and optic heights the way rifles do.
How this slide mounts an opticPlate-mounted across the Staccato line; the DPP and RMR plates are the common competition choices.
About this opticLarger window than the ACRO on the same clamp interface.
GuidesSuppressor-height sights: will your irons co-witness? · Installing a red dot: what the makers say · Zeroing a red dot for the first time · Red dot lost zero? Troubleshooting the mount
What to order, and how to fit it
The fit checker's build sheet for this pair, assuming sights of unknown height. Open it in the fit checker to set your sights, work out screw length from your own caliper readings, or copy it as text.
Rather not do it yourself? Mounting an optic is a short bench job for most gun shops and gunsmiths. Buy the parts under "Parts to order" and print this page for the shop: it lists what is not on file for this pair, so they know which figures to take from the makers, and ends with a blank log for whoever does the work. How an install goes, from the makers' manuals.
Build sheet
Data compiled September 2026 · Optic Mounting
- Pistol
- Staccato P
- Optic
- Steiner MPS
- Footprint
- Aimpoint ACRO
- Slide
- Staccato / 2011 optic plate system
- Mount
- Adapter plate required
Parts to order
| 1 × | Steiner MPSAimpoint ACRO footprint · 3.3 MOA | $450–650 |
| 1 × | Staccato → ACRO / MPSDawson Precision | $25–60 |
| 1 set | Suppressor-height sights, if yours are standardMeasure your front sight first, then compare it with the sight heights published for this slide and optic, where the sheet lists them. The height that co-witnesses depends on the slide and the optic; a slim slide needs less than a full-size one. | optional |
| Estimated total: optic + plate | $475–710 |
Where to buy
| Steiner MPSAimpoint ACRO footprint | Steiner ↗ |
| Staccato → ACRO / MPSDawson Precision | Dawson Precision — this item ↗ |
| Suppressor-height sights, if yours are standardOptional, for a co-witness. Makers include Trijicon, Ameriglo, XS and Dawson |
Fasteners: which bag
You don't buy these. Screws come with the pistol, the optic and the plate, and they look alike. The thread is tapped into the slide or plate (the optic only has a clearance hole), so they decide the thread, not the optic.
| Joint | Thread | Comes from |
|---|---|---|
| Plate → slide | set by the slide | Supplied with the plate. The one screwed joint in this stack, so it gets the threadlocker and the torque check. Keep the pistol's cover-plate screws apart from these. |
| Optic → interface | Cross-bolt clamp | Supplied with the optic. The ACRO clamps rather than bolting through, so there's no screw length to get wrong. Torque the cross-bolt to Aimpoint's figure. |
On the bench before you start
- Torque wrench — set to the figure in your optic's manual
- Driver bits — T10 / hex per model, fully seated so they don't round the head
- Calipers — for the screw length check below
- Blue removable threadlocker — Vibra-Tite VC-3 or Loctite 242. Never red.
- Degreaser — isopropyl or brake cleaner
- A parts tray — you'll have three bags of look-alike screws
- Witness-mark paint or lacquer — so you can see if anything moves later
Install spec
Plate to slideper plate instructions
Optic torqueper Aimpoint manual
ScrewsCross-bolt clamp
DriverT10 / hex per model
InterfaceClamp interface with recoil shoulder — not a screw-and-lug pattern
Not on file for this build
Where a figure is not published, this sheet says so instead of guessing. Get these from the maker or your gunsmith.
- Screw length
- Never published here, because it depends on your exact stack. Measure it and test-fit dry.
Sequence
- Clear the pistol. Drop the magazine, lock the slide back, look and feel the chamber, then do it again.
- Remove the factory cover plate and set its screws aside. They are not optic screws.
- Degrease the slide pocket, both faces of the plate and the optic base. Oil under a plate lets it move.
- Seat the plate on the slide, check it sits flat with no rock, and fit its screws with blue threadlocker.
- Torque the plate to spec, bringing the screws up evenly rather than one at a time.
- Set the optic on the plate's rail and tighten its cross-bolt clamp to Aimpoint's figure. There are no optic screws to fit.
- Let the threadlocker cure before firing (check the bottle; usually a few hours to overnight).
- Confirm zero at your working distance, then re-check torque after the first 100–200 rounds.
Before you fire it
- Screw length checked dry: it must not bottom out on the slide or reach the striker channel.
- Optic sits flat with no rock, and the screws pulled up evenly.
- Torque set with a wrench, not by feel. Witness-mark the screws so movement is visible later.
- Threadlocker cured.
- Function check, then zero confirmed live.
Screw length is the one that hurts
Too long and a screw bottoms out on the slide or reaches the striker channel; too short and it strips under recoil. This sheet gives the thread but can't give the length, which depends on your exact plate and optic stack. Test-fit dry and count threads.
Shop log (fill in)
| Torque wrench, and setting | |
| Plate screws: thread, length, torque | |
| Optic screws: thread, length, torque | |
| Threadlocker used (product, or none) | |
| Witness marks applied | |
| Zeroed at (distance, ammunition) | |
| Torque re-checked after (rounds) | |
| Fitted by, and date |
Sight co-witness
Answered above: co-witness with standard and suppressor-height irons.
Confirm the firearm is unloaded before any work on the slide. Mounting an optic is gunsmithing: stay within your competence and use a gunsmith when a job is past it. Provided as-is with no warranty; you use this at your own risk. Prices are approximate street-price bands from September 2026. Torque and fitment figures come from manufacturer documentation; confirm against the current manuals for your pistol, optic and plate before installing. Not affiliated with or endorsed by any manufacturer.
The Staccato P with other optics
Plate11
No fit2
Every optic on the Staccato P, and how each mounts
The Steiner MPS on other pistols
Plate17
- GLOCK 19 Gen5 MOS
- Smith & Wesson M&P9 M2.0 Optics Ready (4.25 / 4.6 / 5 in)
- SIG Sauer P320 X-Carry
- GLOCK 17 Gen5 MOS
- Springfield Armory Echelon
- Walther PDP Full Size (1.0)
- Shadow Systems MR920
- Ruger RXM
- GLOCK 45 Gen5 MOS
- GLOCK 26 Gen5 MOS
- SIG Sauer P320 XCompact
- Smith & Wesson M&P9 M2.0 Compact Optics Ready
- Walther PDP Compact (1.0)
- CZ P-10 C Optics Ready
- Heckler & Koch VP9 Optics Ready
- CZ Shadow 2 Optics Ready
- Canik TTI Combat
No fit13
- SIG Sauer P365XL
- GLOCK 43X MOS
- Springfield Armory Hellcat OSP
- GLOCK 48 MOS
- SIG Sauer P365X
- SIG Sauer P365 Optics Ready
- SIG Sauer P365-XMACRO / XMACRO Comp
- Smith & Wesson M&P Shield Plus Optics Ready
- Springfield Armory Hellcat Pro
- Canik METE SFx
- GLOCK 17 / 19 / 45 Gen6 (ORS)
- Taurus GX4 TORO / GX4XL
- Palmetto State Armory Dagger Full Size / Compact (RMR cut)
Sources for this page (2)
Data compiled September 2026 from these documents. A figure with no source here is marked "not on file" on the page. How the data is checked.
Last checked against the makers’ documents. The Steiner MPS: window, weight and dot checked against the maker's own spec sheet or manual on September 26, 2026. Not individually re-checked since it was compiled (September 2026): the slide’s data and the plate.
Something on this page wrong?
Tell us what it should be, and include a source: nothing changes without one.