SHIBUYA ULTIMA CPX IV

The ULTIMA CPX IV is the latest evolution of Shibuya’s compound sight line (since 2005), refined through continuous user feedback and re-engineered from the ground up for smoother operation, higher precision, and long-term reliability. Rock solid, lightweight, and widely regarded as a gold-standard option for both 3D and target compound archers.

Key Features

Finer Adjustment — Shibuya’s Smallest Click Increment

• Elevation and windage adjust approx. 0.04mm per click (improved from 0.05mm)

• Enables ultra-fine tuning for high-level competitive accuracy

Zero Backlash — ZPE System Integration

• Incorporates Shibuya’s acclaimed ZPE System for true zero backlash

• Firm, responsive clicks even when reversing direction for more accurate calibration

Sight Scale Plates (Recessed Metal)

• Recessed metal scale plates on both sides of the elevation bar

• Includes blank plate + reference scale

• Optional plates sold separately: 8 double-sided plates = 16 scale options

• Printed sight tapes can be applied to the supplied blank plate

Flat Shelf Indicator Pin

• Easier to adjust and sits closer to the tape surface while still clearing layered tapes

• Both side pins lock via a side cap screw to prevent accidental movement

Tria-Lock System (Scope Rod Stability)

• Positions the scope rod approx. 1/2" closer to the elevation bar than conventional sights

• Reduces moment load on the windage unit (helps prevent play/faults)

• Encloses the scope rod holder on three sides for a rattle-free, zero-tolerance fit

X-Lock System (US Pat. No. 7,287,335)

• Re-adjustable, zero-tolerance fit between windage unit and sight frame

• Durable polyacetal resin guide spacers enclose the elevation rail

• Field-adjustable and replaceable parts for long-term serviceability