Carlson's Choke Tubes Tactical Breecher Muzzle Brake Remington Cylinder. This choke tube is manufactured from 17-4 Heat Treated Stainless Steel in your choice of either Cylinder or Extra Full constriction. The Cylinder Choke Tube may be used with ALL shot shells including Lead Steel Hevi-Shot and even slugs The Extra Full choke tube can be used with all Hevi-Shot and lead loads (but is not to be used with slugs and cannot be used with any Steel shot larger than #2 or with any Steel shot faster than 1550FPS). The Extra Full constriction is also an excellent choice for hunters using larger shot sizes for coyotes wild hogs and deer. The Tactical Choke Tube has a head that extends approximately 2.75" beyond the end of the barrel and features a matte black finish. The addition of this choke will not only make any ordinary shotgun look extraordinary but also significantly reduce recoil allowing for better control of your firearm and quicker follow-up shots. Perfect for Law Enforcement or Home Defense. These chokes are proudly made in specialized factories and feature Carlson's lifetime warranty Package Contents: Carlson's Remington 12GA Tactical Muzzle Brake Specifications for Carlson's Remington 12GA Tactical Muzzle Brake: Manufacturer: Carlson's Choke Tubes Color: Black Gauge: 12 Fabric/Material: 17-4 Heat Treated Stainless Steel Gun Make: Remington Country of Origin: USA Features of Carlson's Remington 12GA Tactical Muzzle Brake Tactical Breecher M/B: Remington Cylinder Package Contents: Carlson's Remington 12GA Tactical Muzzle Brake Carlson's Choke Tubes 84120: Tactical Breecher Muzzle Brake: Remington Cylinder