Atlas Custom Works Infinity Optic Mount With Thumb Rest for Hi-CAPA GBB Pistols, Red

The Infinity Optic Mount solves a problem Hi-CAPA builders face: how do you run a red dot on a pistol that wasn't designed for one? Atlas Custom Works built this to add a proper optic interface without milling the slide or compromising the frame. The thumb rest is integrated into the mount itself, so you get improved grip control without adding another piece to hunt down.

How it fits. This mounts to Hi-CAPA frames using standard M4 and M3 screw patterns—the common thread across most 1911-style GBB platforms. If your slide already has a cut for an optic, this gives you a stable base. If you're building from scratch, it provides the mounting surface you need without permanent modification.

What the thumb rest does. On a pistol, your support hand thumb position affects recoil management and follow-up shot speed. The thumb rest gives you a consistent anchor point, which matters more in competition or speedsoft where split times are measured in hundredths. It's not mandatory, but it's the kind of detail that separates a functional build from a tuned one.

What you need to know before buying. This is just the mount. Your optic, mounting screws, and any adapter plates come separately. Make sure your chosen optic's footprint matches the interface—most micro red dots work, but check the spec on your specific model.

Includes only the optic mount. No screws, no optic, no adapter plates.