Rifle Marksmannship M16A1, M16A2/3, M16/4 AND M4 Manual Download

2004 / FM 3-22.9 

From the Preface: 

This manual provides guidance for planning and executing training on the 5.56-mm M16- series rifle (M16A1/A2/A3/A4) and M4 carbine. It is a guide for commanders, leaders, and instructors to develop training programs, plans, and lessons that meet the objectives or intent of the United States Army rifle marksmanship program and FM 7-0 (Training the Force)