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Derya DY9 Island 9mm Pistol 3.86in Black Melonite Optics Ready 10+1

UPC: 850067243373

$480.99

6 in stock

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Description

Island barrels used to live exclusively on expensive double-stack 1911s and custom competition builds. Derya took that concept and dropped it into a striker-fired polymer 9mm anyone can afford, and the result is one of the more interesting pistols to hit the market lately. The DY9 Island shifts mass forward to the barrel and vents gas through four ports machined into the top, which Derya estimates cuts muzzle rise by about 25 percent and felt recoil by roughly 12 percent. Pair that with a lighter slide and the gun tracks noticeably flatter than a standard compact 9mm, so your follow-up shots come quicker and land closer together.

What Makes the DY9 Island Different

The front sight mounts directly to the barrel instead of the reciprocating slide, so it stays put while the gun cycles. That is where the Island name comes from, and it makes a real difference during rapid strings. You get TruGlo fiber optic sights out of the box, plus a slide cut for the Trijicon RMR footprint if you want to run a red dot. Derya also fits their Second Wind Trigger from the factory, with short pre-travel, a defined wall, a clean break around five pounds, and a positive reset. Under the hood, the platform is patterned after the Gen 3 Glock 19, which means it accepts Glock-pattern magazines and fits many popular Glock holsters, so odds are your existing gear already works.

A DY9 Island Kit That Skips Nothing

This 3.86 inch barreled, black Melonite model arrives as a complete package inside a reusable plastic ammo can with a soft case tucked inside. You get three 10-round magazines, four interchangeable backstraps from small through XL to dial in the grip, a spare guide rod, and cleaning tools including a brush, rod, and Allen key. The integrated magwell funnels reloads home fast, and the aggressive slide serrations give you plenty of purchase with bare hands or gloves. Whether it goes to the range, sits ready for home defense, or lines up at a local match, the DY9 Island delivers competition-style performance without the custom shop bill.

Key Specifications

  • UPC: 850067243373
  • Manufacturer Part Number: 10L.DY9.ISL.US
  • Caliber: 9mm
  • Action: Striker Fired
  • Barrel Length: 3.86"
  • Barrel Type: Island compensated, four top-mounted gas ports
  • Capacity: 10+1
  • Magazines Included: Three 10-round
  • Frame: Polymer with interchangeable backstraps (S, M, L, XL)
  • Finish: Black Melonite (Nitride)
  • Slide: Optics ready, RMR footprint, serrated
  • Sights: TruGlo fiber optic, fixed barrel-mounted front
  • Trigger: Second Wind Trigger, approx. 5 lb pull
  • Safety: Firing pin block, anti-drop trigger block
  • Magazine Compatibility: Accepts Glock-pattern magazines

What’s Included

  • Derya DY9 Island 9mm pistol
  • Three 10-round magazines
  • Four interchangeable backstraps (S, M, L, XL)
  • Reusable ammo can style case with soft case inside
  • Guide rod
  • Gun brush, cleaning rod, and Allen key
  • User manual

Frequently Asked Questions

What does the island barrel on the Derya DY9 Island do?

The island barrel shifts weight forward onto the barrel and vents gas through four ports cut into the top, which Derya estimates reduces muzzle rise by around 25 percent and felt recoil by about 12 percent. The front sight also mounts directly to the barrel rather than the slide, so it stays steady while the gun cycles. The net effect is a flatter-shooting pistol with quicker follow-up shots.

Can I mount a red dot on the DY9 Island?

Yes, the slide comes cut from the factory with a Trijicon RMR footprint, so RMR-pattern optics mount directly with no adapter plate needed. If you prefer irons, the included TruGlo fiber optic sights are bright and easy to pick up. Keep in mind that adapter plates for other optic footprints are not included in the box.

Does the Derya DY9 Island take Glock magazines?

It does. The DY9 Island is built on a Gen 3 Glock 19 pattern and accepts Glock-pattern magazines, including 15 and 17 round versions. With the magwell installed, some Glock 19 length mags may need Derya's basepad to seat fully, while longer magazines drop right in. Most standard Glock holsters and mag pouches tend to work with this pistol as well.

What comes with this version of the DY9 Island?

This is the full kit, and it ships in a reusable ammo can with a soft case inside. You get the pistol, three 10-round magazines, four backstraps in small through XL, a guide rod, and cleaning tools including a brush, rod, and Allen key. It is a genuinely complete package right out of the box.

Additional information

UPC

850067243373

Manufacturer

Manufacturer Part Number

10L.DY9.ISL.US

Action

ATF Type

Pistol

Barrel Length

3.86"

Caliber/Gauge

9mm

Capacity

10 + 1

Number of Magazines

3 10 rd.

Package Height

7.2

Package Width

5.5

Product Type

Semi-Auto Pistol

Safety

Firing Pin/Trigger Block

Shipping Weight

3.06

Sights

TruGlo Fiber Optic

Sights Type

Fixed Sights

Slide Description

Optic Ready/Serrated

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