Castellan 9-Slot Quick-Release Picatinny Riser Mount Adapter — 6061 Aluminum

The Castellan 9-Slot QD Picatinny Riser gives you the longest low-profile platform in the series — nine full Picatinny slots of quick-detach real estate, machined from 6061-T6 aircraft aluminum and finished in matte black anodizing. Mount your red dot, scope, or accessory once, and swap it on and off in seconds without losing zero.

• 9-Slot Picatinny Rail — 3.8" of rail space on a 20mm Picatinny/Weaver platform. Maximum flexibility for positioning red dots, scopes, optics, and accessories.
• Quick-Detach Lever Lock — Tool-free QD lever for fast, repeatable on/off. Holds zero across multiple removal and reinstallation cycles.
• Instant QD Conversion — Converts any non-QD mount accessory to full quick-detach deployment without replacing existing hardware.
• 6061-T6 Aircraft Aluminum — Matte black anodized finish. Lightweight, corrosion-resistant, and rigid enough to hold zero under sustained recoil.
• Allen Key Included — Everything needed for installation is in the box. Ready to mount straight out of the package.

Compatible with red dot sights, scopes, flashlights, and most 20mm Picatinny/Weaver-mount accessories. Also available in 5-slot (2.5") and 7-slot versions.