AirsoftTech23 tests a Fox Custom tightbore inner barrel to find out... "Do Tightbore Barrels Actually Work? Fox Custom 6.02mm Stainless Steel Barrel Review!: Hope you guys enjoyed this review of the Fox Custom 6.02mm Stainless Steel Barrel as well as answering the question of 'Do Tightbore barrels actually work?' DON'T FORGET TO ENTER FOX AIRSOFT'S GIVEAWAY AS WELL AS TO PICK UP ONE OF THESE BARRELS ALONG WITH IT."