Info Help I.B.M. ser.# / barrel

[gunsdora]

HI have a friend that has a I.B.M. SER.# 3764030 Would he need a Dated or Undated I.B.M. barrel .Kind of hard to find the date of the receiver. Thanks for any help.

Information

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[USGI]

This may or may not help, but I have IBM S/N 3812942 with an undated IBM barrel. - Bob

[gunsdora]

All info is helpful thanks. There is no AO stamp on the rear receiver bevel.

[lbelflowers]

I am thinking a 12/43 barrel.

[mar53]

I have 3796600. It has 12-43 barrel. IBM supposedly stopped marking barrels after Dec 1943.

[gunsdora]

Looks like he needs a 11/43 or 12/43 barrel. Great thanks a lot for all the info.

[Bruce McAskill]

A November 1943 barrel would be correct for the serial number.