Carlson's Browning Invector Plus 20 Gauge Flush Mount Choke Tube

Made from 17-4 heat treated stainless steel, these chokes are for Browning Invector Plus (BIP) shotguns.Steel, Lead, & Hevi-Shot may be used in all constrictions with the exceptions listed below.No Steel shot larger than #BB or speeds exceeding 1550 fps should be used in choke tubes tighter than full.These choke tubes are backed by Carlson's Lifetime Warranty and Made in the USA!