I just purchased a TC ENCORE KATAHDIN PRO HUNTER in 45-70. What barrels will fit the FLEX-TECH stock? Thinking about ordering a couple different caliber barrels. But I want to stay with the FLEX-TECH. Who should I order them from (Bergara, Bullberry, eabco, MGM, SSK or TC)?

The forend should fit any of the factory Encore rifle barrels (not the shotgun barrel though). Some of the custom makers use their own mounting systems or will match the factory fittings if you ask.

What are you looking for additional barrels?

I was thinking a 223 or 223AI and a 7x57 barrel should set me up fine. Maybe a shotgun and muzzloader barrel later on. Just for fun!

There are a lot of 223 and muzzleloader barrels around new and used and relatively cheap. There are several variations of shotgun barrels available but they are a bit more expensive. The 223AI and 7x57 would probably need to be customs but you may find a used one as well.

I have had good results with MGM barrels in a contender.