Castellan Adjustable-Height Picatinny Riser Mount — 3-Slot, 0.9–1.2" Rise

Fine-tune your optics height without swapping mounts. The Castellan Adjustable-Height Picatinny Riser delivers 0.9–1.2 inches of rise in a compact 3-slot footprint — machined from 6061 aircraft-grade aluminum and finished in matte black anodizing for a build that's as tough as it is precise.

• Adjustable Rise: 0.9–1.2" — Dial in the exact co-witness height for your red dot, scope, or optic. Fits all standard 20mm Picatinny rails.
• 6061 Aircraft Aluminum — Weighs just 1.83 oz. Waterproof, corrosion-resistant, and built to handle sustained recoil without flex or shift.
• 3-Slot Scalloped Rail — 1.57" length with distinctive scalloped Picatinny slots for snag-free mounting and reduced weight. Dimensions: 1.57"L × 1.10"W × 1.21"H.
• Dual-Side Locking Nuts — Wrench-tightened locking nuts on both sides deliver extreme clamping force, holding zero against the heaviest recoil loads.
• Includes Allen Wrench — Everything you need in the box: 1× riser mount + 1× Allen wrench. Ready to install out of the package.

Compatible with red dot sights, scopes, and most Picatinny/Weaver-mount optics and accessories.