Castellan G3/MP5 Picatinny Rail Mount Adapter — 180° Rotatable Claw, Aluminum

Bring your G3 or MP5 platform into the modern optics ecosystem with the Castellan G3/MP5 Picatinny Rail Mount Adapter. The 180° rotatable claw design locks onto the receiver with a precision, glove-like fit, giving you a stable 20mm Picatinny base for scopes, red dots, and other rail-mount accessories — without permanent modification.

• G3 / MP5 Series Compatible — Designed specifically for the MP5 and G3 platform receiver geometry. Provides a standard 20mm Picatinny rail for scopes, red dot sights, and accessories.
• 180° Rotatable Claw Mount — Adjustable claw rotates 180° for flexible mounting positions and a precision, snug fit across slight variations in receiver profiles.
• Aluminum Alloy Construction — Lightweight at 63g, with a matte black finish. Durable, corrosion-resistant, and built to handle sustained recoil without loosening.
• Tool-Ready Installation — Includes 4 screws and hex nuts. Use the long end of the included hex wrench for reliable torque without slippage.
• Rock-Solid Optics Platform — Full Picatinny rail engagement provides a stable, wobble-free base for scopes and red dot sights.

Compatible with MP5 and G3 series platforms. Minor fitting adjustments may be required to accommodate variations between specific model generations.