Apex Optic Mount for ACRO/MPS* – S&W Revolvers

The Apex Optic Mount for ACRO/MPS* – S&W Revolvers is a machined aluminum base that lets you mount Aimpoint ACRO or Steiner MPS red dots directly to the top strap of your Smith & Wesson K, L, N, or X-Frame revolver. It replaces the factory adjustable rear sight and gives you a rock-solid platform for fast, precise shot placement — especially on heavy-recoil loads. This mount is built to handle the torque and vibration that come with magnum cartridges, and it keeps your optic locked in place shot after shot.

Manufacturer	Apex Tactical Specialties
Model	Apex Optic Mount for ACRO/MPS* – S&W Revolvers
Material	6061-T6 aluminum (per manufacturer specs)
Compatibility	Smith & Wesson K, L, N, and X-Frame revolvers with adjustable rear sight
Finish	Black anodized
Weight	1.2 oz (per manufacturer specs)
Condition	New

Key Features

• Direct-fit ACRO/MPS footprint — No adapter plates needed. The mount is machined specifically for the Aimpoint ACRO and Steiner MPS optics, so you get a lower bore axis and a secure fit that won’t shift under recoil.
• 6061-T6 aluminum construction — This isn’t pot metal or plastic. The mount is CNC’d from solid billet and hard-anodized to resist corrosion and wear. It’s light enough to not throw off the balance of your revolver but strong enough to take the abuse of heavy .357 or .44 Magnum loads.
• Replaces the factory adjustable rear sight — The mount slides right into the rear sight dovetail and uses the same screw holes. No permanent modification to your revolver. You can swap back to iron sights in minutes if you want.
• Low-profile design — The mount keeps the optic low to the top strap, so you don’t lose your cowitness with the front sight (if you choose to keep it). It also clears most holsters designed for optics-ready revolvers.
• Tested for magnum recoil — Per Apex, this mount has been cycled through thousands of rounds in .357 Magnum and .44 Magnum test guns. Screws stay tight, and the optic holds zero even with hot handloads.

Who It’s For

This mount is for the revolver shooter who wants a red dot for hunting, competition, or defense — without sending their gun off to a machinist. If you own a Smith & Wesson K-frame (like the Model 66 or 19), L-frame (686, 586), N-frame (29, 629, 57, 58), or X-frame (500, 460), and you’ve been wanting to run an ACRO or MPS, this is the cleanest way to do it. It’s also a solid choice for hunters who need a dot that can handle wet weather and hard recoil.

Pros & Cons

• Pros: Simple install, no gunsmithing needed, rock-solid lockup, low bore axis, lightweight, affordable at $50.
• Cons: The mount is specific to the ACRO and MPS footprint — it won’t work with RMR, Holosun 407C/507C, or other common red dots. You’ll need to buy the right optic for this mount.

Comparison: Apex vs. Other Optic Mounts

Feature	Apex ACRO/MPS Mount (S&W Revolver)	Zev Technologies RMR Mount (S&W Revolver)	Lone Wolf Distributors Dovetail Mount (1911/2011)
Compatibility	S&W K, L, N, X-Frame revolvers	Select S&W revolvers (limited frame sizes)	1911/2011 pistols only
Optic Footprint	ACRO / MPS	RMR / RMSc	RMR / RMSc
Material	6061-T6 aluminum	7075-T6 aluminum	Steel
Installation	Drop-in, no gunsmithing	Drop-in, may require fitting	Drop-in, no gunsmithing
Price	$50	$80–$120	$35–$55

If you’re running a Smith revolver and want an ACRO or MPS, the Apex mount is the most purpose-built option at a fair price. Zev’s mount is fine but costs more and doesn’t cover as many frame sizes. Lone Wolf’s mount is for 1911s, so it’s not a direct competitor — but it shows how affordable a good dovetail mount can be.

FAQ

Will the Apex Optic Mount fit my Smith & Wesson Model 686?

Yes. The mount is designed for S&W K, L, N, and X-Frame revolvers with adjustable rear sights. The Model 686 is an L-frame, so it’s a direct fit. You’ll just remove the rear sight assembly and install the mount in its place.

Can I use this mount with a Holosun red dot?

No. This mount is specifically machined for the Aimpoint ACRO and Steiner MPS footprint. Holosun uses a different mounting pattern (typically RMSc or RMR). You’ll need an ACRO or MPS for this mount to work.

Do I need to modify my revolver to install this mount?

No. Installation is completely reversible. You remove the two screws holding the factory adjustable rear sight, slide the mount into the dovetail, and tighten the screws. No drilling, tapping, or permanent changes.

Will the mount hold zero on a .44 Magnum?

According to Apex’s test data, yes. The mount has been tested with thousands of rounds of .44 Magnum and .357 Magnum. The 6061-T6 aluminum and the four-screw interface keep the optic locked in place.

Does this mount come with screws or a tool?

The mount includes the necessary screws for installation. You’ll need a small screwdriver or hex wrench (not included) to tighten them. Most shooters already have a gunsmith screwdriver set handy.

Last updated: April 2026

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