LDT M320 Grenade Launcher (Black)

The M320 is a modern grenade launcher that can be used either by itself or in conjunction with a rifle.  Much like traditional grenade launcher you can remove the stock and mount it to the bottom of your airsoft gun.  However, unlike traditional launcher such as the M203, this side loading design allows for a much faster loading or reloading (not to mention you no longer need to push the launcher all the way forward to expose the breech).  

The M320 being made from polymer is lightweight and even has its own holster options for users that want to use it as a standalone weapon platform.