Talk:M16A1/@comment-29702769-20170428065458/@comment-26466669-20170613002032

You want a 21 round mag not 20 since 21 is a multiple of 3. With 20, not a multiple of 3, the last burst won't shoot a full three bullets but just 2 bullets, making the damage 90 instead of 135. The last burst would be incapable of killing a zombie unless through a headshot.