Carlson’s Ported BuckShot Choke Tubes, 12 Gauge.

Carlson's Cremator Waterfowl Choke Tubes, 12 Gauge.

Carlson’s Waterfowl 2-Piece Choke Tube Set, 12 Gauge.

Carlson Shotgun Magazine Tube Extensions, 12 Gauge.

Carlson's Benelli Nova 12-gauge Magazine Tube Extension.

Carlson’s Waterfowl 3-Piece Choke Tube Set, 12 Gauge.

Carlson’s Long Beard Ported Turkey Choke, 20 Gauge.

Carlson's Extended Turkey Choke Tubes, 12 Gauge.

Carlson’s Long Beard Ported Turkey Choke, 12 Gauge.

Carlson’s Ported Coyote Choke Tubes, 12 Gauge.