I have a 12.5" TJ's barrel blank for sale that was intended for the .30 cal CO2 Pistol I just sold, but never fitted as the velocity would have been too low on CO2.... It would be ideal for someone wanting to build a PCP pistol.... It is 1/2" OD, 0.357" groove, 0.350" land, and 26" twist, and is just a blank, NO machine work has been done, hence no need for a photo.... The price is $99 plus postage....

Bob