by vulrath » Sun Oct 23, 2011 6:02 pm
If there isn't some sort of adapter that clamps onto the barrel, then you have two options:
1) Replace the barrel entirely (they should be TM-compatible)
2) Take it to a machine shop
Personally, I'd replace it with a known steel or aluminum barrel if it were my gun, but that's me. Whatever you do, just note that it'll cost money.