Derya Firearms DY9 9mm Luger 15+1 4.02" Black Melonite Steel Barrel, Black Nitride Optics Ready/Serrated Alloy Steel Slide, Black Polymer Frame w/Accessory Rail, Black Interchangeable Backstrap Grip, USA Made The DY9 offers a personalized touch with a customizable grip, accommodating hands of all sizes through interchangeable backstraps. Features a fiber optic 3-Dot sight system; alloy steel slide and barrel, treated for hardness and nitride coating; internal chassis for enhanced stability. Includes four backstraps. Made in the USA.