Caliber: 9×19 mm (9mm Luger).

Capacity: commonly 15 rounds (Glock-sized pattern mags).

Barrel length: ~3.86–4.02″ (≈98–102 mm).

Features: striker-fired, optic-ready slides (adapter plates), Truglo sights, interchangeable backstraps.

Derya’s DY9 family is a 9×19mm, 15-round striker-fired pistol available in a number of factory finishes (black, bronze/cerakote, gold-accent models, etc.).

I couldn’t find any evidence of a factory “purple” Derya pistol for sale from Derya or major US dealers — most retailer listings show black, bronze, gold/“midnight bronze” and some limited finishes instead.

Finish: commonly sold in black Melonite/nitride finishes; special colors (purple, etc.) are not typical from factory — those are usually custom Cerakote jobs.

Price & availability: positioned as an affordable Glock-sized alternative; many U.S. dealers list it in the low-mid hundreds USD (availability varies).

Use cases: range shooter / budget duty/home defense handgun; some buyers treat it as a range/backup gun rather than a primary duty firearm. Community reports are mixed — many like the value, others prefer factory Glock reliability.