The lynchpin of the Libelle line, the LDS-63 is a modular gas-operated bullpup carbine that has the unique property of being able to take a wide variety of rifle and pistol ammunition, simply by swapping out barrels and certain portions of the assembly. These modifications are optimized to be performed by someone with a decent machine shop and some basic tools.
All of the above, of course, is bull. You can contact my editor with any complaints.
The LDS-63 my attempt at combining the MP5 and AK-47, with a few distinctive bits that would make it easier to recognize in, say, a video game. More on that later.