The Invector tubes are manufactured from 17-4 heat treated stainless steel to withstand heavy buffered turkey shotshells. These choke tubes produce extra tight patterns with copper plated and buffered lead turkey shotshells. These chokes produce dense patterns and carry a lifetime . The Extended Turkey Chokes extend approximately 1" from the end of the barrel. These chokes have a matte blue finish.

Manufactured form 17-4 Heat Treated Stainless Steel / Matte Blue Finish. Features a 1. 050 inch Parallel Section. Tube Extends Approximately 1 inch from the end of the barrel. No Steel Shot Larger than #4 may be used in Turkey Choke Tube. Constriction: Turkey / Dia: . 565.

Date First Available: May 18, 2017. Best Sellers Rank: #141,144 in Sports & Outdoors. Customer Reviews: 4.7 out of 5 stars 11 ratings 4.7 out of 5 stars. : B072365QBB. Included Components: ?Choke Tube. Part Number: ?10310. Manufacturer: ?Carlson's Choke Tube. Number of Items: ?1. Suggested Users: ?Unisex-adult. Material: ?Steel. Color: ?Black. Model Name: ?Winchester-Browning Inv-Moss 500 Extended 20 Gauge Turkey Choke Tube, Black. Brand Name: ?Carlson. Item Dimensions LxWxH: ?4 x 2 x 1 inches. Package Weight: ?0.03 Kilograms. Item Package Dimensions L x W x H: ?3.9 x 1.54 x 0.83 inches.