I beleive the barrel is .689, but it dosnt state it on the package anywhere. The package does say it is threaded for a 98 custom or custom pro. So, I may have to call Tippmann or contact actionvillage. But my stock 8 inch barrel works. I'll have to try my PMI Razor though
Last edited by KinsmanBaller : 06-23-2009 at 12:34 PM.