How to Identify a Real M1A1 Carbine vs a Fake
This video provides a detailed guide to identifying genuine M1A1 Carbine folding stocks from reproductions. Key authentication points include specific 'Circle P' and 'RIA EB' proof marks, the 'B257614' drawing number cast into the buttplate, and 'OI' markings on original walnut stocks. The receiver must also be marked 'INLAND DIV.' to be considered authentic.









