The Glock G45 Gen 5 delivers superior performance and accuracy in a lightweight and compact pistol design. It comes chambered in 9mm with a 4.02 inch barrel. Features include a flared magwell, front slide serrations, and three 17 round magazines.Factory Rebuild Glock's are professionally restored by Glock and function flawlessly as if they were brand new. There may be very mild cosmetic blemishes, but again they are guaranteed to perform to standard.