Carlson's Flush Improved Modified Cylinder Choke Tube for Benelli Crio/Crio Plus 12ga .700 SPECIFICATIONS BRAND: CARLSON'S BRAND FAMILY: FLUSH MOUNT CA PROP 65: YES CHOKE DIAMETER: .700 COLOR: SILVER GAUGE: 12 GA WEAPON MFG: BENELLI WEAPON MFG MODEL: CRIO/CRIO PLUS DESCRIPTION Parallel section is 25% larger than previous models Designed to tighten your shot patterns Made for use with the Benelli Crio Plus System