Description Fourth generation Glock 21 chambered in .45 ACP with four, ten round removable magazines and a 4.61″ barrel. Fully textured polymer frame with interchangeable backstrap, reversible magazine catch, accessories rail, and polymer trigger with trigger safety. Black finished serrated slide with Glock bucket sights. Comes in its factory Glock box with matching serial number, factory paperwork, cleaning brush, four backstraps, four magazines, and magazine loader. Must ship to FFL holder. Condition: Excellent with very light handling wear and patina on the slide. Clean rifled bore. Appears to have been shot very little. Barrel Length: 4.61″ Serial: BFAS039 Manufacturer: GLOCK Caliber: .45 ACP Model: 21 Gen 4