USED - Police Surplus Glock 21 pistol in .45ACP. White outlined night sights front and rear are starting to dim. Slide is Olive Drab Green. There are very few marks on this firearm to suggest that it was used - wear to the slide and breechface indicates that rounds were chambered and unloaded more than the weapon was fired. All serial #s match, but the slide is not marked Gen4, even though it appears to have Gen4 texturing on the frame. Magazine release is not reversible.