From the originators of Polygon Progresive Rifling comes the all new Rf/x Scenario Series Internally Rifled barrel! You've never seen anything like it... You've never shot anything like it! Now standard on all Pro-Team Scenario Series A-5 and Model 98 guns, and barrel upgrade kits. And like all Pro-Team Scenario Series products, these are proudly built in the U.S.A. Put a whole new twist on accuracy today!