Chambered in 9MM, this 10rd striker fire pistol comes with Truglo Rear and front sights, two optic plates (fits Truglo, Docter, Meopta, Insight, Vortex, and Trijicon), 4 pieces of Backstraps (S,M,L,XL), Guide Rode, Gun Brush, Allen Key, Cleaning Rod, and 1 magazine. The DY9 isn't a dream, but does shoot like a dream. Everything already in the package for a reasonable price, this ergonomically tested and fit pistol is perfect for all experience types including for recreational, self-defense, and law enforcement.