Tippmann made a thread improvement change on their Model 98 paintball guns a few years back. This JCS Tippmann 98 to Tippmann 98 barrel adapter works any direction with any properly threaded 98 paintball barrel. Basically, if you try a new Tippmann 98 paintball barrel thread in an older (pre serial number 495,000) it may not work. This JCS paintball barrel adapter provides the minimum material needed to accurately make the connection without any decline in accuracy. Black anodized aircraft aluminum. Guaranteed to work with GTA products from Tippmann. We do not test all products from all manufacturers.