Auto ordnance serial number search
The 5.7 Johnson caliber carbines were consistent with the M1 Carbines produced by Plainfield during that time and significantly different than the first carbines made under the Plainfield Machine Company name. About four years later Plainfield produced carbines in caliber 5.7 Johnson using anĪ prefix serial number. The lowest serial number observed on a PMC. The highest serial number observed on an H&S carbine so far has been A615.
Has shared, regardless of their skill level. Different people have different skill levels and I am indebted to everyone who The photographs were selectedīased on what they show as opposed to quality. Many of the photographs depicted below were submitted by owners who offered to share them with you.Not until serial number H001 did Plainfield remain relatively consistent with their markings and the receivers they were on.
#Auto ordnance serial number search serial numbers
Serial numbers ran consecutive and changes in markings or receivers were not identified by any particular serial number sequence.Especially the very early ones machined by owner William Haas. Generally, the casting and machining of the majority of receivers was well done. Some of these apprentices were still in high school. Plainfield is known to have employed machinist apprentices in the production of their firearms. The quality of the investment castings and their machining varied at different times. In this section will cover these changes chronologically and will include serial number sequences, when known. The design of the receivers changed over time as did the markings. Post WWII Commercially Manufactured M1 Carbines (U.S.A.)Īll of the receivers used by Plainfield Machine, including those used for Millville Ordnance and H&S, were manufactured by investment casting.