Carlson's Choke Tubes Buckshot 12 Gauge Browning Shotgun Choke Tube - Carlson's Buckshot Choke Tubes are designed to deliver tight patterns downrange. This choke is ported to reduce recoil and muzzle jump that tend to go hand in hand with these large loads. This choke features a constriction designed specifically to optimize patterns with large and small loads alike. This choke will extended about 1 inch out of the barrel and has a black finish. Machined out of 17-4 heat treated steel this choke can be used with Lead, Steel, and Hevi-Shot loads. Made in the USA ; Gauge - 12 Gauge; Material - Polymer;