This optic mount is machined from aluminum and replaces the adjustable rear sight assembly on Smith & Wesson K, L, N, and X-Frame revolvers. It provides a secure, direct-mount interface for Aimpoint ACRO and Holosun MPS-series optics. The primary problem it solves is the lack of a dedicated, low-profile mounting solution for full-size pistol optics on revolver top straps—eliminating the need for adapter plates or gunsmith-machined dovetails.
Compatibility
- Frame sizes: Smith & Wesson K, L, N, and X-Frame revolvers equipped with adjustable rear sights (e.g., Model 686, 627, 629, 460, 500).
- Optic footprints: Aimpoint ACRO P-1 / P-2, Holosun MPS, and other optics using the ACRO/MPS bolt pattern.
- Rear sight removal required: Mount replaces the factory rear sight assembly. Verify your revolver has a removable adjustable rear sight before ordering.
Key Features
- Material: 6061-T6 aluminum, black anodized finish.
- Mounting: Direct-fit to the top strap using the existing rear sight screw holes. No drilling, tapping, or permanent modifications.
- Height: Maintains a low deck height to co-witness with standard-height front sights on most models.
- Weight: Approx. 0.5 oz (mount only, optic not included).
- Hardware: Includes stainless steel screws (Loctite recommended during installation).
Install Difficulty
2 out of 5 — requires removal of the factory rear sight assembly, cleaning of the top strap screw holes, and application of thread locker. Tools needed: #0 or #1 Phillips screwdriver, blue Loctite (242), and a torque driver (recommended 12–15 in-lbs).
FAQ
Will this mount fit my Smith & Wesson Model 686 (6-shot)?
Yes, the 686 is a K/L-frame revolver with an adjustable rear sight. This mount is compatible with all K, L, N, and X-Frame revolvers that have the factory adjustable rear sight assembly.
Does this require permanent modification to the revolver?
No. The mount uses the existing rear sight screw holes. Installation is reversible—you can reinstall the factory rear sight if desired.
Will my optic co-witness with the front sight?
On most K/L/N/X-Frame models with standard-height front sights, the mount allows a lower 1/3 or absolute co-witness, depending on the optic deck height. For exact confirmation, check your front sight height and optic dimensions.
Shipping: Ships within 1–2 business days. Warranty: This component carries a limited lifetime warranty against manufacturing defects. Warranty does not cover damage from improper installation or use of incorrect hardware.
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