19. Heckler & Koch Model HK45 in 45 ACP with 4.53" Barrel. This semi-auto pistol operates in single and double action and it features an O-ring barrel with polygonal rifle, two 10 round magazines, black polymer frame, spur hammer, low profile 3-dot sights, finger groove grips, interchangeable grip panels, integrated Picatinny rail, twin slide serrations, an internal mechanical recoil reduction system that reduces recoil 30%, ambidextrous controls and a black finish. The gun is As New in every way and it comes in its original box with paperwork. Estimated Value: Low: $1,100 High: $1,300