Burris FastFire E red dot installed on an Armadyne 11mm Dovetail ModMount on a CZ 512 rifle.

11mm Dovetail Mount for Burris FastFire E

$49.95
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Burris FastFire E red dot installed on an Armadyne 11mm Dovetail ModMount on a CZ 512 rifle.

11mm Dovetail Mount for Burris FastFire E

$49.95
11D-BUR-FFE

Fit check: Fits 11mm-wide dovetail rails with a 60-degree profile.

Configured for the Burris FastFire E using its Aimpoint ACRO interface. Use the optic manufacturer's hardware to secure it to the optic-side mount.

About This 11mm Dovetail ModMount

This mount comes with the 11mm dovetail base and optic-side mount needed to install your optic on a compatible rail. The current components and hardware are listed above.

How the Two-Part System Works

The base clamps to the rail and provides the recessed oval ModMount interface. The optic-side mount carries the optic footprint and has a matching oval stud. Two flat-head M4 screws secure the base and optic-side mount together.

Every ModMount optic-side mount works with every ModMount base. This makes it possible to move an optic-side mount between compatible firearm or rail bases. Learn more in the ModMount system guide.

Optional vertical and 45-degree offset spacers install between the base and optic-side mount to raise or reposition the optic. Spacers are sold separately unless they appear in the included-components list.

Compatibility

Use this mount on an 11mm-wide rail with a 60-degree dovetail profile. Measure across the top of the rail from point to point before ordering. A compatible 11mm rail measures about 0.43 inch across the top; a common 3/8-inch rail measures about 0.50 inch and requires the 3/8 Dovetail mount.

Installation Notes

Unload and clear the firearm or airgun before installation. Loosen the preinstalled #6-32 clamp screw enough to seat the base fully on the dovetail rail. Tighten the clamp screw to 7 in-lb when installed dry. Liquid thread locker is optional; if used, reduce the clamp-screw torque to 5.25 in-lb.

Seat the optic-side mount, or an optional spacer and optic-side mount, fully in the oval interface. Secure the assembly with two flat-head M4 screws tightened to 10 in-lb dry or 7.5 in-lb with liquid thread locker.

Attach the optic and dry-fit the complete assembly before final installation. Confirm that no optic screw protrudes through the optic-side mount or contacts the rail or receiver.

Follow the installation instructions for the complete optic-screw check, torque values, and optional thread locker guidance.

Designed and Manufactured in the USA

Armadyne-manufactured ModMount components are designed and manufactured in the USA. They are CNC machined in our Lincoln, Nebraska shop, then sandblasted and finished with H-Series Cerakote for wear and corrosion resistance.

Warranty and Returns

Armadyne stands behind the mounts and components we manufacture. Review our warranty and returns information for support, exchanges, and discretionary return terms.

Optional ModMount Spacers

Add a compatible spacer when the application needs more optic height or a 45-degree offset.