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The DY9 is Derya Arms' flagship full-size striker-fired pistol, and it shows up ready to work right out of the box. Built around a polymer frame in a footprint that will feel familiar to anyone who has spent time with a Glock 19, it chambers 9mm and ships with a 10-round magazine. The 3.86-inch barrel wears a black melonite finish that handles corrosion and surface wear without much fuss, and the slide is fully serrated for a confident grip whether you're running it with bare hands or gloves.
Sights are Truglo fiber optics front and rear, with a red front post and green rear. They pull your eye in quickly, which is the whole point. The slide also comes optics-ready with two included mounting plates compatible with a wide range of red dot footprints including Vortex, Trijicon, Docter, Meopta, Insight, and Truglo optics, so adding a mini red dot is straightforward without any machining.
One of the better features on this pistol is the grip customization setup. Four backstraps in small, medium, large, and extra large come in the box, so you can actually fit the gun to your hand rather than the other way around. The trigger is Derya's Second Wind Trigger, which features a short pre-travel, a clean defined wall, and a positive reset that feels noticeably better than what you typically find at this price point. Safety comes from a dual-system setup with both a firing pin block and an anti-drop trigger block.
On the magazine side, the DY9 is compatible with most Glock 19-pattern and Glock 17-pattern magazines, which opens up a solid aftermarket. The pistol ships with a magwell installed, which aids grip and reload speed. It comes with everything needed to get started: the pistol, one 10-round magazine, two optic plates, four backstraps, guide rod, gun brush, Allen key, cleaning rod, and a speed loader.
Most Glock 19 (15-round) and Glock 17 (17-round) pattern magazines are compatible with the DY9 when the magwell is not attached. With the magwell installed, some G19 magazine basepads may not seat fully, so Derya recommends using their magazine basepads for the best fit. Extended 30-plus round Glock-pattern magazines also seat without issue since the base does not protrude against the magwell.
The DY9 ships with two universal optic mounting plates that support footprints from Truglo, Docter, Meopta, Insight, Vortex, and Trijicon. If you want to run a direct-mount red dot, check which plate corresponds to your optic's footprint before installing. The included hardware and plates make the swap straightforward without any gunsmithing.
Many Glock 19 holsters will fit or come very close, but Derya does note that compatibility is not guaranteed. The DY9 is slightly wider than a standard Gen 3 G19, so inside-the-waistband or form-fitted kydex holsters designed specifically for the Glock 19 may be tight. It is worth checking with the holster maker or trying before committing to a specific model.
The Second Wind Trigger is Derya's in-house trigger design built into the DY9 from the factory. It features a short take-up, a firm and well-defined wall before the break, a clean release, and a positive reset on the return stroke. Compared to a lot of stock triggers in this price range, it has a noticeably cleaner feel that most people notice right away on the range.
The DY9 is built for consistent use. The barrel and slide wear a black melonite finish, which is a surface hardening treatment known for solid corrosion resistance and wear durability. The polymer frame is resistant to UV, chemicals, and typical environmental conditions. Derya's internal testing has put the DY9 through over 20,000 rounds without reported failures, which is a reasonable benchmark for a service-grade pistol.
The '10L' at the beginning of the part number indicates this is the magazine-limited variant of the DY9, shipping with a 10-round magazine. The 'US' suffix indicates the pistol was made in the United States at Derya's Jacksonville, Florida manufacturing facility. The standard full-capacity DY9 ships with a 15-round magazine, so this variant serves buyers in areas with magazine capacity restrictions.
| UPC | 860012072767 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 10L.DY9.US |
| Action | |
| ATF Type | Pistol |
| Barrel Length | 3.86" |
| Caliber/Gauge | 9mm |
| Capacity | 10 |
| Color | Black |
| Model | |
| Number of Magazines | 1 10 rd. |
| Package Height | 2.7 |
| Package Width | 8.5 |
| Product Type | Striker Fired |
| Safety | Firing Pin/Trigger Block |
| Shipping Weight | 3.05 |
| Sights | Fiber Optic |
| Sights Type | Fixed Sights |
| Slide Description | Optics Ready/Serrated |
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