The LR-300's bill to the last part: high quality metal, two burst modules, springs and a rifle body. No blueprint exists; durability is what sets it apart.
The locked crate finally opens and an M16A2 is inside. Before the trip home, know what you are carrying: by this bill it is an LR-300 to the last part, 40 high quality metal, two burst modules, springs and a rifle body. The row marks it not researchable, so its blueprint cannot be learned and your bench will never make a second one.
One line of its row does differ from the LR's: durability. The M16A2 has a third more, so on paper it lasts longer before it breaks, and between two equal bills that makes it the one to keep.
The recycler treats both alike: a module, some metal, a spring and a coin flip on the body. So the choice is play style. If nobody in your group likes burst fire, break it down after the fight it came from, and the module ends up on an M39.
Questions
M16A2 ×10: how many resources?
High Quality Metal ×400, Burst Module ×20, Metal Spring ×20, Rifle Body ×10.