The Derya DY9 is a semi-automatic pistol chambered in 9mm Luger with a 4.02-inch Gold TiN steel barrel and a 10+1 round capacity. It shares the same polymer frame platform as the standard DY9 in a compliant 10-round configuration. 
 

Key Specifications 

• Brand: Derya 
• Model: DY9 
• Caliber: 9mm Luger 
• Action: Semi Auto 
• Capacity: 10+1 
• Barrel Length: 4.02 inches 
   

Detailed Features 

• 4.02-inch Gold TiN steel barrel 
• 10+1 round capacity configuration 
• Semi-automatic operation on a polymer frame platform 
• Same DY9 pistol platform in a restricted-capacity variant 
• 9mm Luger chambering

Buyers of the 10-round DY9 are typically picking it up for jurisdictions with magazine capacity restrictions, and sentiment often reflects that context. Most owners note it is functionally identical to the higher-capacity variant, and the Gold TiN barrel finish draws the same mix of curiosity and mild skepticism.

The Derya DY9 platform as a whole gets credit for its optics-ready slide and accessory rail, which remain present in this configuration. Owners appreciate not having to buy a separate pistol just to comply with local rules.

The common points of criticism mirror the full-capacity version: a limited aftermarket, a trigger that is adequate but not outstanding, and some uncertainty about long-term parts availability from a relatively new-to-market manufacturer.