Real trooper stock?

[GaryV2]

My 2¢..It's possible the stock is a late OI replacement stock complete with RI pistol grip possibly made from walnut sapwood. Unfortunate that it does not come with the wire buttstock. The part number for an M1A1 complete stock is listed as 6544072 ( the tag has a D instead of the 65 prefix) leads me to believe this is designated spare/replacement part. But...

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[BrianQ]

The part number for an M1A1 complete stock is listed as 6544072 ( the tag has a D instead of the 65 prefix) leads me to believe this is designated spare/replacement part. But...

Depends on when the part number list or tag was generated.

The drawing size designators, D in this case, were replaced with numbers, 65 replaced D, in the 1950s. Part numbers for new parts adopted during the later part of WWII also had numbers indicating the drawing size instead of alpha characters. That is why the later slides were assigned numbers like 7160091 and 7161843 instead of C57151 for the earlier slide types. The same thing can be seen when comparing WWII ear M1 Garand hammers with post war hammers.

[BrianQ]

Here is a better example of the part number sequence change. WWII era M1 Garand bolts are marked with part number D28287-#, # being the revision number while post war bolts are marked with part number 6528287.