This design offers reduced pellet deformation, less flyers and more dense patterns, make them extremely effective on all types of waterfowl throughout the entire season. Remington ProBore 12 Gauge Choke Tubes Carlson's Cremator® Choke Tubes are designed to deliver exceptional performance for waterfowl enthusiasts. Featuring the innovative Triple Shot Technology (TST... The Cremator series has no size or speed restrictions with steel shot in any of the three constrictions, except do not use steep shot larger than #2 with the long range Choke Tube. These Choke Tubes feature Triple Shot Technology (TST), which is a series of three graduated rings in the taper section of the choke tube that allows a more gradual transition from the shotgun bore to the final constriction. Designed specifically for Remington Pro Bore 12-gauge shotguns, this extended, ported turkey choke delivers tight, consistent patterns that extend your effective range while reducing muzzle rise, allowing faster follow-up shots and improved accuracy in the field You also get all the benefits of an extended choke tube, including a 25% longer parallel section for tighter and more dense patterns, wrench-less installation, quick removal and helps with muzzle protection. Choke Tube Carlson's s 52264 Remington 12 Gauge Skeet Flush Stainless Steel Waterfowl Choke Tube .710 Made from 17-4 Stainless