Atlas Custom Works Aluminum Optic Mount for TM Hi-Capa 5.1 & 4.3, Gold

Adding a red dot to a Hi-Capa means cutting the slide or buying a replacement upper. The Atlas Custom Works optic mount lets you skip both. This is a CNC-machined aluminum plate that bolts directly to your TM Hi-Capa 5.1 or 4.3, giving you a flat, stable surface for a micro red dot without permanent modification to the gun.

How it mounts. The plate attaches to the dust cover area of the frame, using the existing screw holes. Once installed, you get a solid rail interface for mounting a Trijicon RMR, Holosun, or similar footprint optic. The mount itself is machined from a single piece of aluminum, so there's no flex under recoil and no polymer creep over time.

What you need to know before buying. This is just the mount. The optic is not included, and you'll need to source your own red dot with a compatible footprint. Depending on your chosen optic and mounting screws, you may also need a set of socket-head cap screws to secure it properly. Check the optic's mounting pattern before you order.

Fit and compatibility. Built specifically for Tokyo Marui Hi-Capa 5.1 and 4.3 frames. It will not fit aftermarket slides, gas blowback replicas from other manufacturers, or non-TM pattern pistols. If your Hi-Capa has a modified dust cover or custom frame, verify fitment first.

What this is not for. This mount adds height to your sight picture. If you're running iron sights as your primary, you'll need to co-witness or remove them. It's also not designed for large optics or magnified scopes—this is a micro red dot solution, period.