The Arken ARP-30Z is a Rigid Precision cantilever scope mount from Arken Optics, designed for 30mm tube scopes. It features a 0 MOA (flat/no built-in elevation) configuration.
Key Specifications
- Tube Diameter: 30mm
- Height: 1.5 inches (centerline height from rail to scope tube center)
- Cantilever Extension: Approximately 2.5 inches of forward offset — this positions the scope farther forward for improved eye relief, especially useful on AR-style rifles or platforms with shorter eye relief needs.
- Weight: Approximately 5.9–7.1 oz (lightweight for a precision cantilever mount; slight variations in reported figures across retailers).
- Material: 6061 T6 aircraft-grade aluminum, fully CNC machined for tight tolerances and rigidity.
- Base Compatibility: MIL-STD Picatinny / M1913 rail.
- Finish: Matte black.
- Torque Specs (Arken recommendation): Max 18 in/lb for ring screws, 30 in/lb for base screws (always defer to your optic manufacturer's specs if higher).
Main Features
- One-piece cantilever design for strength and return-to-zero reliability.
- Aimed at tactical, AR-15/AR-10, or general rifle use where forward scope positioning helps with proper cheek weld and eye relief.
- The 0 MOA version suits setups without needing built-in elevation bias (e.g., when your scope has plenty of internal adjustment or you're using a canted rail). Arken also offers a 20 MOA version (ARP-30) for longer-range applications.
- Simple, robust construction without extra bells and whistles.
