The AG-C/EGLM is a single shot 40 mmgrenade launcher that attaches to any AR-15 type rifle, including the HK416/17. It is manufactured by Heckler and Koch and is derived from the AG36. EGLM stands for "Enhanced Grenade Launching Module". A stand-alone variant exists. The device attaches under the barrel and forward of the magazine. A separate sighting system is added to rifles fitted with the AG-C/EGLM, as the rifle's standard sights are not matched to the launcher. The AG-C/EGLM can fire high-explosive, smoke, illuminating, buckshot direct fire, CS gas, and training grenades.