These flush mount choke tubes are manufactured from 17-4 heat treated stainless steel and are for the Winchester Mossberg 500 Browning invector Weatherby and Savage 12 gauge & 20 gauge shotguns. Steel Lead and Hevi-Shot may be used in all constrictions with the exceptions listed below. These choke tubes are backed by Carlson's Lifetime Warranty and are made in the USA!
- No Steel shot larger than BB or speeds exceeding 1550 fps should be used in choke tubes tighter than Full
- Steel shot should not be used in our turkey constrictions