Carlson's Choke Tubes Remington 12ga. Extended Turkey Choke Tube .680 Remington 189063. These choke tubes produce extra tight patterns with copper plated and buffered lead turkey shot. This choke features a longer parallel section allowing for less flyers and denser patterns over greater distances. The choke tube extends approximately 1in from the end of the barrel. This helps keep the flushing effect at a minimum when shooting lead shot. Remember to pattern your shotgun choke tube with the specific shotshell you are going to be using. Different brands of shotgun choke tubes have different constriction details. Remington has an original factory "T" shaped choke tube and the Carlson's name on it. The 'T' shape allows for longer "T" shaped choke tube section provides more overall leeway for ejection. Related products include Remington choke tubes Remington shotgun choke tubes and a number of other quality aftermarket choke tube manufacturers. Specifications for Carlson's Choke Tubes Remington 12ga. Extended Turkey Choke Tube: Manufacturer: Carlson's Choke Tubes Color: Black Fabric/Material: 17-4 Stainless Steel Gauge: 12 Choke Tube System: Remington Choke Choke Type: Turkey Gun Make: Remington Quantity: 1 Additional Features: Non-Ported Features of Carlson's Choke Tubes Remington 12ga. Extended Turkey Choke Tube Remington 12ga Extended Turkey .675 Package Contents: Carlson's Choke Tubes Remington 12ga. Extended Turkey Choke Tube Carlson's Choke Tubes 189063: Remington 12ga. Extended Turkey Choke Tube .680 Remington