Below are some pictures sent to me by good friend to the website, Trey Moore, owner of MooreMilitaria. He is selling something that is rarely seen on the market. The ultra rare Xm148 made by Colt.
This is the Vietnam war era grenade launcher that mounts to the barrel of the M16 family of weapons. It has the X designation because it was never made standard. The M203 was the grenade launcher that was adopted by the military for use with the M16 series and is still in use today. Trey tells me there only about 6 of them on the registry.
If you have the money and want this one you can find it at www.mooremilitaria.com. You can get to it by clicking on the banner link on the right. It is certainly a once in a life time chance. For the rest of us, enjoy the detailed pictures of the system.