Description
The HS510C Lower 1/3 Spacer from Holosun is designed to raise the height of compatible red-dot optics for improved sight alignment and shooting ergonomics. Specifically made for the Holosun HS510C reflex sight, this spacer installs between the optic and its mount to increase the optic height to a lower 1/3 co-witness position.
Raising the optic to a 1.63-inch optical height allows the red dot to sit above the iron sights while still keeping them visible in the lower portion of the sight window. This configuration provides a clearer sight picture while maintaining backup sight capability if needed.
Constructed from lightweight aluminum with a durable matte finish, the spacer is built for long-lasting performance on rifles using standard Picatinny rail systems. Installation is straightforward, and mounting hardware is typically included for a secure fit.
Compact, durable, and easy to install, the HS510C Lower 1/3 Spacer is a practical accessory for shooters who want improved sight alignment and compatibility with magnifiers or backup iron sights.
