Manufacturer: Classic Army (Hong Kong)
Type: Grenade Launcher
Date Acquired: 09/2006
Classic Army – AG36 Grenade Launcher
The Classic Army – AG36 Grenade Launcher is a replica of HK's AG36 grenade launcher. Real steel info here. The CA version has an all metal barrel, folding quadrant sight system and includes a long G36 foregrip.
Classic Army – AG36 Grenade Launcher – Sites unfolded
Unfortunatley to mount on a Tokyo Marui G36c you need to modify some of the internal battery space and add a longer outer/inner barrel. I'm not even sure if you loose battery space with this specific foregrip and I'm assuming this is made for the CA G36 full size line.
Classic Army – AG36 Grenade Launcher – Side Loading, spring loaded.
Fortunately for me, I bought this nade launcher to modify as an XM320. The stand alone version of the AG36.
Will keep posting on progess of the modification.
Oh well.. I got lazy and mounted it to a G36 LOL!
ETREMELY front?heavy and ridiculously long now. This killed the ability to carry a battery in the foregrip 
I may go back to the XM320 project very soon.