Castellan Rear Sight Rail Scope Mount — MIL-STD-1913 Picatinny, Low-Profile Red Dot

Mount a low-profile red dot directly to your rear sight rail with the Castellan MIL-STD-1913 Scope Mount. Machined from hardcoat anodized 6061 aircraft aluminum, this compact base delivers a stable, adjustable platform for co-witness optics setups — without adding unnecessary height or bulk to your rifle.

• 4-Way Level Adjustment — Fine-tune alignment up/down and left/right for precise co-witness positioning with your iron sights. No shimming or guesswork required.
• MIL-STD-1913 / Picatinny Standard — Full 1913 rail compatibility ensures a secure, wobble-free fit with any Picatinny-mount red dot, micro optic, or accessory.
• Low-Profile Design — Optimized for low-profile red dot sights. Keeps your optic close to the bore for a natural sight picture and minimal snag profile.
• Hardcoat Anodized 6061 Aluminum — Military-grade hardcoat anodizing for maximum surface hardness, corrosion resistance, and long-term durability under field conditions.
• Rear Sight Rail Compatible — Designed to mount directly to standard rear sight dovetail or rail bases, making it an ideal upgrade for rifles with limited top-rail real estate.

Compatible with most low-profile red dot sights and micro optics on standard MIL-STD-1913 / Picatinny rear sight rails.