NOTE: Winchester SX-2, SX-3, SX-4 & SXP use Browning Invector Plus Tubes There can be several styles of chokes used by a number of shotgun manufacturers. Please check our detailed interchange guide to be sure this is the right product for your shotgun. Click here for that information Our Extended Turkey Choke Tubes extend approximately 1" from the end of the barrel. They are manufactured from 17-4 heat treated stainless steel and have a matte blue finish. Our Extended Turkey Choke Tubes feature a 1.050" parallel section to produce the optimum pattern with your shotgun. *No Steel Shot Larger than #4 may be used in our Turkey Choke Tubes NOTE: Winchester SX-P, SX-2, SX-3 & SX-4 use Browning Invector Plus Tubes--Go to Browning Invector Plus page if you are ordering for these model of shotguns! *Choke pictured at right is for illustrative purposes. Actual choke may appear different from photo but will fit the model and make of your Winchester shotgun.