Carbine tool

[byronroland]

Here are pictures of a wrench for gas piston nut, at least I think it is, it fits.

I should have put a ruler in the picture, but it is 5.5" long. Fairly rough forging.

Has a stamp, hard to tell what it is, appears as an "X" or something close. No ordinance marks.

Any ideas or definite answers?

Information

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[ScottR]

Could be a K for Kingsbury tool mfg. who made them.

Scott

[Bill Ricca]

The K is located in a different position on the tool. This is an X , which was Hadley Specialty Tool, in Mass.