The M16 is the default AR unlocked in Base Wars. It deals good damage per shot and has enough damage to take down someone wearing a basic Armor Suit in 10 hits if you don't get any headshots. The weapon's stats are decent, but not the best, but like any weapon, in the hands of a skilled player, it'll be quite deadly.
Damage per shot: 149
Headshot Mult: 1.5x
Ammunition: 30 round magazine, 150 in reserve, 180 in all.