Never had a problem trading guns for gear or vice versa. Certain types of gear IME is more popular with the gun trading crowd.
Trading a gun I don't really want anymore to a "gun guy" for something that I do want, has always worked out as a great trade for the both of us.
I worry more about the folks looking to trade Precious Metals, Guns and Ammo, Land etc. This usually means that they are "Horse Traders" looking to get the most for their item and should be avoided.