The Derya DY9 Island Kit pistol in 9mm with a 10+1 capacity (brand part no. 10L.DY9.ISL.US) is built for shooters who want precision, control, and performance across home defense, range practice, or competitive shooting. Derya uses an Island Barrel design that shifts mass to the barrel and integrates four top-mounted gas ports to dramatically reduce muzzle rise, delivering flatter recoil and faster follow-up shots. The slide features an RMR optics cut, TruGlo fiber-optic sights, and an ergonomic grip that works with STK100/200 and Glock 17/19 magazines. The full kit includes three magazines, an ammo case with soft case, guide rod, gun brush, Allen key, cleaning rod, and four backstraps in small, medium, large, and XL. Among gas-port-equipped semi-auto handguns, this DY9 Island Kit configuration favors shooters who want reduced muzzle rise and a complete accessory package.

Key Specifications

• Chambered in 9mm.
• Capacity of 10+1 rounds.
• The barrel measures 3.86 inches, featuring an Island Barrel design with four top-mounted gas ports.
• The slide carries an RMR optics cut for direct red dot mounting.
• The sights are TruGlo fiber optic.
• The kit includes three magazines and a full maintenance/accessory package with four backstraps.
• The magazines are compatible with STK100/200 and Glock 17/19.
• Rifled with a 1-in-16-inch twist rate.
• The safety is Firing Pin/Trigger Block.
• The sights are Fixed Sights.
• The slide is Optic Ready/Serrated.
• The pistol is striker fired.

Frequently Asked Questions

What does the Island Barrel design do? It shifts mass to the barrel and vents gas through four top-mounted ports to reduce muzzle rise for flatter recoil.

What comes included in the kit? Three magazines, an ammo case with soft case, guide rod, gun brush, Allen key, cleaning rod, and four backstraps.

Buy the Derya DY9 Island Kit Pistol

An Island Barrel design built for precision, control, and performance across home defense and competition is exactly what this Derya DY9 Island Kit Pistol delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.