Description Glock 21 Generation 2 in .45 caliber with one, ten round removable magazine and a 4.5″ barrel. Textured grip on composite frame. Smooth composite trigger. Matte black finished serrated slide and barrel. Left side of frame serrated slide release. Lower left side of frame serrated magazine release button. Front and rear fixed white sights. Must ship to a FFL holder. Condition: Very Good with light scuffs and handling wear. Clean rifled bore. Barrel Length: 4.5″ Serial: BSG030US Manufacturer: Glock Caliber: .45 ACP Model: 21 Gen 2 Book# 9-771