Exactly. When I was in Vietnam the biggest complaint of the grunts was about the M-16, especially saying it jammed too much. Some say, though, that's it's superior in close-combat situations.
Actually, from what I heard, the M-16 itself wasn't a bad weapon. Rather, the real problems were that all too often, the troops were issued ammo that was unsuitable for full-suto combat use. Also, the idiot bueareaucrats in charge of the Army back then failed to instruct our boys on the right care and maintenance fo the 16. It was wrongfully referred to by some as "self-cleaning". With the right ammo, some modifications, and the right instructiong, the 16 turned out to be a pretty good weapon.