TM 9-1005-319-10 Operator's Manual, M4 Carbine - 2010 - $7.95 : My ARMY Publications, Resources for the U.S. Army - field manuals, flashcards, army training manuals
How to disassemble your airsoft aeg m4 - YouTube
Technical Manual for 5.56MM, M16A2, M4 and M4A1 Carbine: Defense, Department: 9781601702869: Amazon.com: Books