Manufacturer: Trulock Chokes SWBER12695
These chokes are extended, knurled and have a black oxide finish. They are available in three degrees of full choke and were specifically designed for use with steel and other environmentally friendly shot. this is the ultimate choke for LONG RANGE pass shooting of waterfowl. All Super Waterfowl chokes are manufactured from a unique grade of alloy steel that has a strength level of approximately twice that of 17-4.