ACRO Footprint: 5 Optics, 80 Pistols, Zero Cut Slides

No pistol in this dataset is cut for ACRO. Five optics use the pattern, 80 of the 196 optic ready pistols here can mount one, and all 80 get there through an adapter plate rather than a milled slide. ACRO is the only widely reachable pattern on this site with a factory-cut count of zero.

That is not a gap in the data. It is what the pattern is. ACRO does not use screws through the optic into the slide, so there is nothing for a slide to be milled for. The optic clamps onto a mount, and on a pistol that mount is a plate. Which means the entire practical question for ACRO is not “is my slide cut for it” but “does my pistol’s plate system sell an ACRO plate”, and for 6 of the 15 plate systems in this dataset the answer is no.

Every number below is recomputed from the published dataset bundle for this article, version 2026-09-16. The bundle holds 196 optic ready pistols, 100 optic pages covering 135 individual SKUs, and 24 footprint and plate system hubs. The ACRO hub owns the current optic list and the mount paths; this article is about what the shape of those numbers means when you are standing at the counter with a plate kit in your hand.

Five optics, three brands, one fit list

The ACRO group is the smallest tidy pattern in the dataset. Five optic pages, five SKUs, no product families collapsed behind them: the Aimpoint ACRO P-1, ACRO P-2 and ACRO C-2, the Steiner MPS and the Burris FastFire E. Aimpoint’s own three pages are its entire presence in this dataset; the company has no page here on any other pattern. Steiner has two pages here and the MPS is its only ACRO one, the MPS-C sitting on RMSc. Burris is the interesting one: it holds four optic pages spread across three different patterns, and the FastFire E is its only ACRO entry, while the FastFire 3 and FastFire 4 sit on Docter and the FastFire C on RMSc. Buying by family name fails here in the usual way.

All five fit exactly the same 80 pistols. Not roughly the same, the same: the fit list is identical across the group, because every one of those fits is reached through the same nine plate paths. In the whole 100 page optic catalogue only five pages land on a fit count of 80, and they are these five. If you are reading a pistol page and see 5 optics you cannot place, check whether the number next to them is 80.

Here is where ACRO sits among the nine true footprints in the dataset, as opposed to the 15 factory plate systems, which are a different kind of thing entirely.

Footprint	Optic pages	SKUs	Brands	Mount	Slides cut for it	Reached by plate	Total reach
RMSc	30	33	12	2 screws, 4 lugs	80	106	186
RMR	33	47	7	2 screws, 2 lugs	7	110	117
DPP	15	16	5	2 screws, 4 lugs	2	110	112
ACRO	5	5	3	clamp, 1 stopper	0	80	80
Docter	6	6	4	2 screws, 4 lugs	0	55	55
Holosun K	5	8	1	2 screws, 2 lugs	26	1	27
C-More STS	1	1	1	2 screws	0	28	28
Holosun 509T	2	8	1	clamp, 1 stopper	0	0	0
Holosun EPS	1	9	1	2 screws, 4 lugs	0	0	0

Three patterns here have no factory-cut slide at all: ACRO at 80 pistols reachable, Docter at 55, C-More STS at 28. ACRO is the largest of the three by a wide margin, and its 80 is 40.8% of the 196 pistols in the bundle. That puts it fourth by reach behind RMSc at 186, RMR at 117 and DPP at 112, and ahead of everything else on the site.

The other clamp pattern in the table is worth a glance, because it is the cautionary version of the same idea. The Holosun 509T pattern also mounts by clamp, also has no factory-cut slide here, and has no plate path either, so its 2 pages and 8 SKUs currently reach zero pistols in this dataset. A clamp pattern with no plates behind it is a pattern with nowhere to go.

A clamp, not a screw pattern

Every other pattern on this site is identified by counting things on the underside of the optic: two screws, four lugs, that sort of thing. ACRO is identified by the absence of them. There are no top-down screw holes on the optic body at all. The optic is fixed by a single cross-bolt clamp on the side, which draws the body down onto a dovetail-style groove in the mount, and a single recoil stopper on the body engages a matching slot so the clamp is not carrying recoil in shear. That description comes from Aimpoint’s own ACRO P-2 product page and the Optics Trade write-up of the ACRO mounting standard, both recorded as sources on the pattern in this dataset, along with OpticsPlanet’s footprint guide and The Gun Zone’s ACRO note.

So the identification sequence is short and it starts with the optic, not the gun:

1. Turn the optic over. No screw holes on the underside means you are not looking at RMR, RMSc, DPP, Docter or Holosun K, all of which are two-screw patterns. An ACRO body has a flat interface with a groove, and a clamp screw entering from the side.
2. Look for the stopper. One perpendicular boss, engaging one slot. Two or four lug positions in a rectangle is a screw pattern, not this.
3. Do not trust the rail resemblance. The interface looks like a short section of rail and is not interchangeable with Picatinny. This is the single most common way people get it wrong, and it is worth saying plainly: an ACRO optic does not clamp onto a Picatinny plate, and a Picatinny-mount optic does not clamp onto an ACRO plate.
4. Check the cross-brand cases. The dataset records Steiner’s MPS on this pattern, and the Optics Trade source above also names the Vector Optics Frenzy Plus as a minor variant that fits ACRO-pattern mounts. There is no Frenzy Plus page in this bundle, so treat that one as documented elsewhere and not asserted here.

Then the gun. Since no slide is cut for ACRO, what you are identifying on the pistol is the plate, and plates are where manufacturers are most helpful: several of them put the footprint in the product name. Walther sells the PDP Gen 2 optic mounting plate for the Aimpoint ACRO footprint as its own listing. Beretta sells the 90-Series red dot optic plate kit in the ACRO footprint, and lists the APX A1 kit by footprint in the same way. Where the plate is named by footprint, the plate is the answer and no measuring is required. Where it is not, the aftermarket compatibility pages do the same job: C&H Precision publishes per-pistol plate listings for the FN 509, CZ P-10, S&W M&P C.O.R.E. 2.0 and HK VP9, and those four listings are the recorded sources for four of the nine ACRO paths in this dataset.

One practical warning that follows from the clamp. On a screw pattern, a wrong plate usually will not accept the screws and you find out immediately. A clamp optic will sit on a mount it was never meant for and feel almost right before the clamp is torqued. The footprint name on the plate is the check, not the fit by eye.

Nine plate systems carry it, six do not

Of the 15 factory plate systems in this dataset, 9 have a plate recorded that presents ACRO and 6 do not. Those 9 paths account for all 80 reachable pistols, with no pistol appearing on two paths, because a pistol belongs to exactly one plate system.

The table below is the part no single hub can show you: what each plate system presents, with ACRO called out. Each system’s own hub owns its pistol list and its plate table.

Plate system	Pistols	ACRO plate	Other footprints its plates present
Glock MOS	16	yes	RMR, RMSc, DPP
SIG P320 X-series	16	no	RMR, RMSc, DPP, Docter, C-More STS
S&W M&P CORE	14	yes	RMR, RMSc, DPP
FN 509	12	yes	RMR, RMSc, DPP
Beretta APX A1 / 90-Series	10	yes	RMR, RMSc, DPP, Docter
Walther PDP 2.0	10	yes	RMR, RMSc, DPP, Docter
Canik METE / TP9	7	no	RMR, RMSc, DPP, Docter, C-More STS
CZ P-10 OR	7	yes	RMR, RMSc, DPP
HK VP9 OR	6	yes	RMR, RMSc, DPP
Springfield Echelon VIS	4	yes	RMR, RMSc, DPP, Docter
Taurus TORO	4	no	RMR, DPP, Docter, C-More STS
Ruger factory plate	1	no	RMR, RMSc, DPP, Docter, C-More STS
Springfield XD OSP	1	no	RMR, RMSc, DPP, Docter, Holosun K
Springfield AOS	1	no	RMR, RMSc, DPP, Docter
Walther PDP 1.0	1	yes	RMR, RMSc, DPP, Docter

Two things fall out of that table that are worth more than the table itself.

The first is that the ACRO split does not track system size. The two largest plate systems here are tied at 16 pistols, and one of them has an ACRO plate while the other does not: Glock MOS does, SIG P320 X-series does not. The P320 is the most numerous platform in the bundle by a distance, with 29 SIG Sauer pistols of 196 overall, and not one SIG Sauer pistol in this dataset reaches an ACRO optic by any path. If you own a P320 and you want an enclosed Aimpoint, this dataset has no answer for you, and the honest version of that sentence is that the answer would have to come from a plate record nobody has published to us yet.

The second is that ACRO and Docter divide the same 15 systems almost cleanly between them. Docter has 10 plate paths to ACRO’s 9, only four systems present both, and every one of the six systems that skipped ACRO carries a Docter plate. Docter is a screw pattern with 6 optic pages from 4 brands here; ACRO is a clamp standard with 5 pages from 3. When a plate kit carries one of the two and not the other, the clamp standard is what falls out of it.

The enclosed emitter math: 21 options, 5 of them ACRO

Here is the reason to care about all of this even if you have no attachment to Aimpoint as a brand. Every one of the five ACRO optics is an enclosed emitter. That is unique among patterns that go anywhere: RMSc gets 7 enclosed pages out of 30, RMR 3 out of 33, DPP 5 out of 15, Docter 0 out of 6. Across the whole catalogue, 27 of the 100 optic pages are enclosed.

Now count what a given pistol can actually reach. Group the 196 pistols by what their slide or plate system accepts, and the enclosed-emitter counts line up like this:

Pistol group	Pistols	Optic pages reachable	Enclosed options	ACRO among them
Walther PDP 2.0	10	90	21	5
Beretta 90-Series, Echelon VIS, PDP 1.0	15	89	21	5
Glock MOS	16	84	21	5
M&P CORE, FN 509, CZ P-10 OR, HK VP9 OR	39	83	21	5
Springfield XD-M Elite OSP	1	89	19	0
P320 X-series, Canik, Ruger-57	24	85	16	0
Springfield AOS Prodigy	1	84	16	0
Ruger RXM, triple cut slide	1	78	16	0
Taurus TORO	4	55	8	0
Shadow Systems MR920	1	48	8	0
Holosun K and RMSc dual cut	26	35	11	0
RMSc cut only	53	30	8	0
RMR cut only	5	33	3	0

Every pistol with an ACRO path lands on exactly 21 enclosed options, and no pistol without one gets past 19. The five ACRO optics are close to a quarter of that 21. Strip them out and a Glock MOS owner drops from 21 enclosed choices to 16, the same number a P320 owner has, which is exactly the point: the ACRO plate is worth five enclosed optics and nothing else in the catalogue replaces them.

Look down the rest of that column and the gap widens fast. A pistol with a factory RMSc cut and no plate system has 7 enclosed options. A dual cut Holosun K and RMSc slide has 10. A Taurus TORO has 8 despite being a plate system, because its plate set skips both RMSc and ACRO. A pistol milled for RMR alone has 3. If an enclosed emitter is a requirement rather than a preference, plate systems with an ACRO plate are the top of the field by a factor of two to three, and that ordering is stable across every pistol in the group.

Six enclosed optics remain out of reach even from the best position. Three are on the Holosun K pattern, which reaches only the 26 dual cut slides. One is the full size Holosun EPS and two are the Holosun 509T pair, and all three of those fit zero pistols in this dataset at present. So the practical enclosed ceiling in the bundle today is 21, and it belongs to anything with an ACRO plate.

The 116 pistols with no ACRO path

The complement is worth reading as carefully as the 80, because the two reasons for exclusion call for completely different responses.

Milled slides, 86 of the 116. A slide cut for a footprint does not have a plate to swap, so it can never gain a pattern it was not cut for. That is 80 pistols with an RMSc cut (53 of them RMSc only, 26 also cut for Holosun K, plus the Ruger RXM with its triple cut), 5 milled for RMR alone, and the Shadow Systems MR920 cut for both RMR and DPP. This group includes most of the small carry pistols on the site. It is also why the “universal” pattern question has a different answer at each end of the market: RMSc reaches 186 of 196 pistols, and ACRO reaches none of the guns where RMSc is milled directly.

Plate systems with no ACRO plate, 30 of the 116. All 16 SIG P320 X-series pistols, all 7 Canik METE and TP9 models, the 4 Taurus TORO models, the Ruger-57, the Springfield 1911 DS Prodigy on AOS, and the Springfield XD-M Elite OSP. These are the ones that could change, and would change quietly: a plate exists or is published, one record lands in the dataset, and 16 pistols move at once. If you own one of these and you find a manufacturer or retailer page documenting an ACRO plate for it, that page is the missing piece.

The split by brand is stark. Of the 80 reachable pistols, Glock contributes 16, Smith & Wesson 14, FN America 12, Walther 11, Beretta 10, CZ-USA 7, Heckler & Koch 6 and Springfield Armory 4. Eight brands, all of them full size or duty sized platforms built around a plate system. The other 22 brands in the dataset contribute nothing, not because their guns are worse but because their guns are cut rather than plated.

Choosing: the plate decides, then the optic

The decision order for ACRO is the reverse of every screw pattern, and it is worth being explicit about it.

Step one: confirm the system, not the slide. Find your pistol’s plate system in the table above. If it is one of the nine with an ACRO plate, you have a path and the optic choice is genuinely open. If it is one of the six without, stop here: no amount of optic shopping fixes it, and the sensible move is one of the other patterns your kit does present.

Step two: buy the ACRO plate by name. Plate kits ship with several plates, and the right one is identified by footprint on the packaging or the listing, as in the Walther and Beretta listings above. This matters more than on a screw pattern for the clamp reason already given: a near miss does not announce itself.

Step three: then pick among five. The optic decision is small by design. Three Aimpoint pages, one Steiner, one Burris, all fitting the identical 80 pistols, so compatibility is simply not a variable inside this group. What separates them is not in this dataset: we publish no window dimensions, no weights and no battery types for any of the 100 optic pages, and that is a real limit, not an oversight we are hiding. Of the five, only the Burris FastFire E is flagged verified in the current bundle, and it is the one page of the five carrying a reticle specification, 3.5 MOA. For the rest, the manufacturer pages linked above are the specification source.

Step four: sanity check the count on your pistol page. A Glock 19 Gen5 MOS shows 84 optics, a Walther PDP Gen 2 optic cut 90, a Beretta 92XI 89, an FN 509 Tactical 83, a CZ P-10 C OR 83 and a Springfield Echelon 89. Those totals include the ACRO five. If your pistol page shows a total in the low eighties or higher, you are on a plate system with wide coverage; if it shows 30 or 35, you are on a milled slide and this pattern is not part of your world.

For the broader version of that check, the adapter plate primer covers what a plate does and does not buy you across all 196 pistols, and the M&P CORE guide walks one ACRO-carrying system end to end.

What this dataset does not tell you

Four limits, stated plainly, because a compatibility dataset is only useful if you know where its edges are.

Dimensions are not published here. Not for ACRO and not for any of the 100 optic pages: no window width, no window height, no weight, no battery type. For a clamp pattern that also means no published clamp-bolt torque and no groove dimensions. The manufacturer pages cited above carry what has been published; where they do not, the honest answer is that the number is not available rather than a figure inferred from a photograph.

Verification is partial. 41 of the 100 optic pages are flagged verified against a manufacturer source, and among the five ACRO pages that is one, the Burris FastFire E. The other four are sourced but not yet SME confirmed.

Two of the ACRO optic records share a citation. The ACRO P-1 and ACRO C-2 pages both currently carry Aimpoint’s ACRO P-2 product page as their source URL. That is a sourcing weakness on our side, flagged here rather than quietly carried: the pattern assignment is corroborated by the three pattern-level sources, but those two pages deserve their own product URLs.

One plate path is retailer sourced. The Glock MOS to ACRO path, which is the single largest of the nine at 16 pistols, is recorded against the OpticsPlanet footprint guide rather than a Glock document. Every other path traces to either a manufacturer listing or a C&H Precision compatibility page. If you are betting a purchase on it, the plate packaging is the final authority.

And the standing caveat for the whole site: all 196 pistols here are optic ready, because the dataset only contains optic ready pistols. That is a property of the collection, not a claim about the market.

Sources

Pattern and mounting standard: Aimpoint ACRO P-2, Optics Trade on the ACRO mounting standard, OpticsPlanet footprint guide, The Gun Zone. Optics: Steiner MPS, Burris FastFire E. Plates: Walther PDP Gen 2 ACRO plate, Walther PDP plate versions explained, Beretta 90-Series ACRO plate kit, Beretta APX A1 plate kit, Springfield Echelon VIS pin set, Springfield XD OSP plate, C&H Precision compatibility listings for the FN 509, CZ P-10, S&W M&P C.O.R.E. 2.0 and HK VP9. Pistol: FN 509 Tactical. Counts recomputed from the CaliberAPI export bundle, version 2026-09-16.