During the weeks 4-6, you'll spend most of your time on various ranges. You'll start with basic M16A4 shooting (just try to hit the targets), and move on to farther targets, pop-up targets, grenades, grenade launchers, and more. You'll be surprised at how many different ranges one Army post has.

【PUBG】M16怎么全自动？6分钟了解绝地求生中的M16A4

三角洲行动M16A4改装方案

M16A1

COLT M16A1