Yeah, the main problem was that the weapon is not designed to work in conditions like in Afghanistan. That's why soldiers in Afghanistan (righfully) complained.

Yeah, the main problem was that the weapon is not designed to work in conditions like in Afghanistan. That's why soldiers in Afghanistan (righfully) complained. Then, the weapon trades of weight (plastic), against accuracy (in long fire fights). And if that is the correct trade-off to make is of course debatable and depends on the usage.