The Carlson's Choke Tubes 19592 is a precision-engineered extended turkey choke designed specifically for Beretta and Benelli shotguns with Mobil threading in 12 gauge.Carlson's Choke Tubes Model 19592 Extended Turkey ChokeCompatible with Beretta/Benelli Mobil threading12 gauge with .665 constriction diameter17-4 stainless steel construction for durabilityExtended design for improved performanceMatte black finishApproved for lead shot onlyNon-ported designEngineered for serious turkey hunters this choke tube delivers tight consistent patterns at extended ranges. The extended design and precise .665 constriction diameter optimize shot placement for clean ethical turkey harvests.