The Accu-Port Piston is an adjustable piston head that allows tuning of accuracy and reducing grouping spread. The port adjustment releases pressure which creates the equivalent of a fine tunable cylinder port. Infinite levels of adjustment allows you to find the sweet spot for maximized accuracy by tuning to suit the barrel used. The Accu-Port allows the fine tuning of an over volumed, incorrectly ported cylinder.
Please note Low strength Loctite should be used on the thread from piston to head.
*Piston body not included, color may vary from pictured