Derya Island Complete Upper 9mm UP-DY9ISL-AG

The Derya Island Complete Upper is a 9mm slide assembly engineered to improve recoil management and optic readiness for compatible DY9 and Glock 19 Gen 4 frames. The Island barrel design shifts mass forward and integrates four top-mounted gas ports to reduce muzzle rise and aid faster follow-up shots. A lighter slide with an RMR cut and a fixed fiber-optic front sight preserves sight picture during rapid-fire sequences while offering modern optic compatibility.

Key Specifications

• The caliber is 9mm.
• The model is Island Upper.
• Compatible with DY9 frames and Glock 19 Gen 4.
• The assembly weighs 22 oz..
• The finish is Black.
• Equipped with a fixed fiber-optic front sight.
• Includes an RMR cut for compatible red-dot optics.
• Features four top-mounted gas ports intended to reduce muzzle rise.
• The listed shipping weight is 2.6.

This complete upper provides a practical upgrade path for owners of compatible frames who want improved recoil control and rapid target reacquisition. With its Island barrel geometry, fiber-optic sighting, and optic-ready slide, it is suited for range use, competition, and any application where predictable handling and faster follow-up shots are priorities.