Short barreled 5.56mm automatic rifles have been seeing growing popularity in the Armed Response/SWAT role, giving many of the size/maneuverability advantages of a pistol caliber submachine gun combined with increased range and hitting power. Hooded post front and four-position drum rear sight, with a Knight's Armament Rail Adaptor System installed in place of the forearm, birdcage flash hider, three position "0/1/25" (safe/semi/full) hinge pin configured trigger group and a fixed buttstock. The magazine well bears the HK nomenclature and "IE(antler)" (1984) date code on the left side, with the West Germany/Chantilly, VA address on the right side. One magazine is included, along with a set of three plastic rail covers, a green canvas sling, and a slim profile checkered plastic forearm with hand stop.