T-N.T. Studio APS-X Hop Up System Kit for KJ Works CZ P09 GBB (102mm)

Using state of the art engineering, T-N.T. Studio has designed a new kind of barrel that will not only improve accuracy, but improve performance and range by 30-50 percent. T-N.T. inner barrels are uniquely designed from tight bore to wide bore. Specially designed grooves will create an air cushion that will guide the BB while shooting out of the barrel eliminating the contact of the BB with the barrel itself therefore eliminating the deviation usually created by it.