The make a drop in barrel for the T/C Hawkins in .32 caliber. You simply pull the old barrel and put the new GMBin its place. Sometimes there is an adjustment you need to make to the barrel to make them fit, sometimes there is not an adjustment.
This stainless steel Green Mountain Barrel is the long range hunter model with 1:28 twist. It is in my T/C Renegade. It really is a good shooter.