Briley 12 Ga. Improved Modified Invector Choke For Winchester/Mossberg/Weatherby 57699. Improved Modified Invector Choke For Winchester/Mossberg/Weatherby - A Briley Extended Choke allows you to take advantage of the full range of your shotguns performance. Briley Chokes give you complete control of your shotguns range as well as reliable consistent patterns. The extension provides a longer choke with a more gradual taper a longer parallel section towards the muzzle (thus leading to fewer flyers and more uniform patterns). Many shooters like the advantage of knowing which choke is in the barrel without removing it by simply noting the color coding on the portion of the choke tube extended from the muzzle. Plus the added convenience of being able to change the choke tubes on the range or in the field without a choke tube wrench. Specifications for Briley 12 Ga. Improved Modified Invector Choke For Winchester/Mossberg/Weatherby EXTCL: Manufacturer: Briley Finish: Silver Fabric/Material: Stainless Steel Gauge: 12 Choke Tube System: Browning Invector (Standard) Choke Type: Improved Modified Gun Make: Weatherby Winchester Mossberg Quantity: 1 Additional Features: 50 yds Features of Briley 12 Ga. Improved Modified Invector Choke For Winchester/Mossberg/Weatherby EXTCL: 12 Gauge Improved Modified .025 The Briley 12 Ga. Improved Modified Invector Choke For Winchester/Mossberg/Weatherby EXTCL is a quality addition to the Briley lineup. For more great deals on Shotgun Chokes by Briley please browse our Briley Weapon Accessories page. Briley 12 Ga. Improved Modified Invector Choke For Winchester/Mossberg/Weatherby 57699