Kbkg wz. 1960
The Karabinek-granatnik wzór 1960 (), also designated PMK-DGN-60 or PMK-60, is a Polish-made version of the AK-47 assault rifle that can fire rifle grenades. Description. The LON-I grenade launcher is screwed onto the forward end of the rifle barrel and locked into place by means of a spring-loaded plunger mounted in the front sight base of a modified AK-47 rifle. The sight for the launcher is mounted on the rear sight base. A valve is fitted to the right side of the gas block, allowing the gas to be shut off (preventing it  from leaving the barrel via the gas port) when the grenades are fired. When using the rifle to launch grenades, a special rubber recoil pad is used and a special 10-round magazine is inserted. This magazine has a filler block that prevents it from being used with "normal" (i.e. bulleted) cartridges. There is also a regular version of this rifle as well that was not designed to shoot grenades.