m116a3 channel question

[EO2NMCB]

This is on a USMC m116a3 trailer. I'm trying to find the same cannel to put on a m1101 that has no bed, to mount a mep002a on it. I have looked in the TM, not finding anything. Have searched for U or C channel online, closest I find is sign post. Any ideals?

 

[quickfarms]

They are fairly common.

I have two extra pair that I would sell but I am in ca

 

[Recovry4x4]

Also, normally referred to as hat channel.

 

[gimpyrobb]

Also, normally referred to as hat channel.

I guess thats better than azzhat.