The Kastle Group Fortress AEMS-193 is an optic mount built around the Holosun AEMS footprint, so it accepts optics that use that mounting pattern. It places your optic at a 1.93" optical centerline, a lower-profile setup that leaves room for backup iron sights. The mount uses Titanium K-Clamp hardware, which the maker says spreads clamping force evenly across the Picatinny rail to prevent rail deformation and support return to zero. It occupies 6 Picatinny slots and is tightened to 25 in-lbs of torque with the included T25 Torx bit and a torque wrench.

The body is machined from 7075-T651 aluminum alloy and is 100% made in the U.S.A. in the maker's own facility. A black Type III MIL SPEC hardcoat anodized finish gives the mount surface hardness and corrosion resistance. Flip-to-side 3x and 5x magnifiers made for lower optic positions generally pair with it, as long as the magnifier is rated for a 1.93" centerline. It is a fixed, non-modular mount, so it does not accept the DB-193 offset mounts or the rest of the Fortress accessory line.

• Brand: Kastle Group
• Model: Fortress AEMS-193
• Optic Fit: Holosun AEMS footprint
• Optical Centerline: 1.93"
• Mounting System: Titanium K-Clamp, 6 Picatinny slots, 25 in-lbs torque
• Material: 7075-T651 aluminum
• Finish: Type III MIL SPEC hardcoat anodized, Black