Trulock Sporting Clay Shotgun Choke Tube Fabarm 12 Ga Modified Ported. This choke by Trulock makes it legal for use in the UK in both the Semi-Fast and Penalty Cycle Stages. Trulock Sporting Clay Shotgun Choke have a matte blue finish and are a perfect choice for the shooter who wants to pursue pheasants with their shotgun. This Trulock choke tube is marked on the head and body with the name of the specific choke tube constriction and the exact exit diameter (in thousandths of an inch) is engraved on the body. We make our choke tubes primarily from 17/4 stainless steel bar stock to resist rust and corrosion. Our choke tubes are heat-treated to a high strength level to resist wear and choke creep. Specifications for Trulock Sporting Clay Shotgun Choke Tube - Fabarm: Manufacturer: Trulock Gauge: 12 Gun Make: FABARM Features of Trulock Sporting Clay Shotgun Choke Tube: We make our choke tubes primarily from 17/4 stainless steel bar stock to resist rust and corrosion Our choke tubes are heat-treated to a high strength level to resist wear and choke creep Our choke tubes are marked on the head and body with the name of the specific constriction The exact exit diameter (in thousandths of an inch) is engraved on the body Package Contents: Trulock Sporting Clay Shotgun Choke Tube Trulock SCFAB12705P: Fabarm Sporting Clay 12 Ga Modified Ported