Jebs Choke Tubes Black Nitride Head Hunter 12 Gauge Turkey Choke Tube Mossberg Ulti-Mag 8-35/935 Headhunter .655 Black Nitride JPCBN - 12D1/655. The constriction of the smaller parallel section near the breech gives it greater braking performance and less flyers per shot than a larger parallel section. This choke tube also acts as a "tuning fork" to help with consistent release of the slug. Combined with a good crimping groove and chokable plastic tip the Black Nitride Head Hunter choke tube is a great tool in the box to help with consistent tighter groups. Gives you great slug/funer results with less recoil. Specifications for Jebs Choke Tubes Black Nitride Head Hunter 12 Gauge Mossberg Ulti-Mag 8-35/935 Turkey Choke Tube: Manufacturer: Jebs Choke Tubes Color: Black Finish: Nitride Gauge: 12 Choke Tube System: Mossberg 835/935 Mossberg Model 835 Gun Make: Mossberg Gun Model: Mossberg Model 935 Mossberg Model 835 Ulti-Mag Quantity: 1 Package Contents: Jebs Choke Tubes Black Nitride Head Hunter 12 Gauge Mossberg Ulti-Mag 8-35/935 Turkey Choke Tube None Jebs Choke Tubes JPCBN - 12D1/655: 12 Gauge Mossberg Ulti-Mag 8-35/935 Headhunter .655 Turkey Choke Tube Black Nitride