An ORIGINAL 1970's Armalite AR-180 Operation and Maintenance manual.It measures 8-1/4" x 7-1/4" with 22 numbered pages.It is fully illustrated with step by step instructions for operation,disassembly,assembly and maintenance.There are exploded views with all parts numbered,named and listed by Mfg. Stock Number. Unused condition but the cover has been scuffed and there is a small tear at the center as shown(the rest is as new)