I'll second that. My rifle was made by FN under license. I didn't care, the thing worked. My tank had a German gun, British Armour, Canadian fire control system, Belgian machineguns, Italian sidearms, American engine, and a generally multinational crew. But it worked, and worked well.
I'm a bit of a heretic here, but I'm a firm proponent of bullpups. The AR-15 was a great design for its time, but is getting a little long in the tooth these days. The L85A2 is perhaps a little heavier, but it's better balanced, just as accurate if not more so, and has a longer barrel for the overall length with resultant increase in accuracy and lethality whilst maintaining its compactness, and, of course, has the piston mechanism praised above. The AUG might reduce a little in accuracy, but make up for it in lightness. Both rifles can come with a mounting rail system (which, due to the short stock design, means that the balance isn't as badly affected by mounting things onto it as it is on the AR-15) and so can be plenty adaptable.
NTM