<Li> New Zealand M16; replaced in 1988 by Steyr AUG being replaced as of 2016 with a non-Colt variant of the M16 . </Li> <Li> Rhodesia: M16A1 </Li> <Li> South Vietnam: 6,000 M16 and 938,000 M16A1, 1966--1975 </Li>

Which weapon has the greater maximum effective range m16a3 and m4a1