The Kastle Group Fortress ACRO-45 offset mount is built to work with Kastle's MICRO-226 and ACRO-226 optic mounts, letting you attach any red dot that uses the Aimpoint ACRO footprint to the side of your mount. The 45-degree offset position keeps a second optic angled off to the side, which gives you a spare if your primary goes down. It can also hold dual zeros if your rifle shoots both subsonic and supersonic ammo, and it helps when you are shooting from awkward positions or around obstacles. Industry-standard Picatinny rail compatibility means it installs on almost all modern platforms.

Kastle machines the mount in the U.S.A. from 7075-T6 aluminum, giving you a light, rigid piece of hardware. A Type III MIL SPEC hardcoat anodize finishes it in black, adding a hard surface layer to the aluminum. As part of the Fortress series, it is made for seamless Fortress integration, so it pairs cleanly with the rest of the line. Kastle backs its machined mechanical products with a lifetime warranty covering defects in materials or workmanship.

• Brand: Kastle Group
• Model: Fortress
• Type: Offset Mount
• Optic Footprint: Aimpoint ACRO
• Offset Position: 45 Degree
• Material: 7075 Aluminum
• Finish: Type III Hard Anodized