Carlsons choke tube flush mount 12ga cyl invector

FEATURES
-Winchester
-12 gauge
-Cylinder choke
-Diameter: .730
-Flush mount
-17-4 stainless steel
-Interchangeable with Winchester, Mossberg, Browning Invector, Weatherby, & Savage 12 ga. shotguns

Other Features: .730 dia.,safe for use with steel,lead,copperplated, nickel,hevi-shot,& bismuth also fits mossberg accu choke and weatherby