Having had ancestors in these units, I'm trying to find out what weapons they were issued.
I know the 18th PA Cav was issued 1860 Colts, but have no idea as to carbine or saber

I also know that early in the war the 84th was issued Belgian muskets, but have no idea of caliber, or if rifled or smoothbore.

I have no information on the arms of the 206th.

Any help would be greatly appreciated.