The Code Black series of choke tubes from Patternmaster were created with for the hardcore hunter who demands the most from their equipment. They feature a nitride coating for superior durability in the toughest conditions, and utilize the Patternmaster wad stripping technology which produces extremely consistent patterns with a shorter shot string to help you put more pellets on target. The Patternmaster wad stripping technology slows the base of the wad, allowing the shot to exit the barrel before the wad for undisturbed and extremely consistent shot strings. The porting on this tube will also reduce recoil and muzzle jump to help you get back on target faster for more effective follow up shots. A Patternmaster tube gives you a 2 to 3 foot shot string, compared to 15 to 20 feet from conventional constriction tubes. The result is very simple; when you hit something you hit it with the maximum payload and energy. This means clean kills! Patternmaster accomplishes this not by constr...