This is the pocket sized edition of the US Operators manual (user handbook) for the M16 & M16A1 assault rifles, dated February 1985. The booklets consist of 154 bound pages with soft card covers. The contents include technical principals of operation,operating instructions,maintenance, cleaning and inspection of the weapon with annexes including ammunition, componants and cleaning kit. The booklet measures 5 3/4 x 4 inches (147mm x 101mm) and is in unissued condition. Stock No 20/23.