The unique FlightControl Wad in Black Cloud Ammunition will deliever poor patterns in ported chokes or when used with wad stopping or stripping devices. This choke uses a special field-tested constriction and length to get the most from Black Cloud Ammunitions new configurations.Features:- Knurled End for easy installation- Titanium Coating reduces build-up in the choke- Special Constriction tested to produce the best patterns- Free Choke WrenchSpecifications:- 12 Ga.- Use with Steel, Lead or Hevi-Shot- Mid Range Steel- Fits: Beretta Optima Plus System