In December of 1960 we started roll marking AR15 riï¬es.
For a look at a serial number list that draws on multiple sources, see this thread at ARFCOM.–Eds. We hope this document is of use to collectors and historians.
ARMALITE SERIAL NUMBER LOOKUP SERIAL NUMBERS
Prior to 1969 some mil experimentals were made with no serial numbers, and there are duplicate serial numbers in this area as well. A lot of the GXs have serial numbers in the 14xxx range. There are also GXs that also have a serial number as well as the GX number. We believe that there are multiple GXs with the same number. GX’s are tool-room prototypes with a four digit number which is reportedly their master drawing. We have observed GX’s outside this range.
ARMALITE SERIAL NUMBER LOOKUP PDF
The PDF is here: M16 Serial Number List OCR. We’ve OCR’d the PDF, and double-checked the numbers against the original data. This memo’s been around as a scanned, non-OCR’d.