Made In The USA, These Chokes Are For The Beretta/Benelli Mobil shotguns. Steel, Lead, & Hevi-Shot May Be Used In This Constriction, However, No Steel Shot larger Than #BB Or speeds Exceeding 1550 Fps Should Be Used In Choke Tube tighter Than Full. It Is constructed From 17-4 Heat Treated Stainless Steel.

Carlsons Ported Bone Collector Turkey Choke Tubes Feature a Super Tight, Pattern Tested Constriction That throws extremely Tight patterns With All Shotshell Ammunition Loaded For Turkey Hunting including Lead, Nickel-Plated, copperplated, Bismuth, hevi-Shot, Tungsten, And TSS. A Longer Taper Section To The Constriction (Parallel Section Of Choke Tube) Insure Tight patterns With Less flyers. More Pellets On Target Every Shot! The Bone Collector Choke Tubes Are Precision-machined From 17-4 Heat

The Bismuth Bone Buster Choke Tube Is Designed To Produce Excellent, Dense patterns With All Bismuth Ammunition. It Is CNC Precision Machining From 17-4 Heat Treated Stainless Steel featuring a Longer Parallel Section (Inside The Choke) Over Conventional Factory Choke Tubes. Combine This With Extensive Testing With Various Loads And You Have The Perfect Choke To Deliver Devastating patterns With Bismuth. The Bismuth Chokes Can Be Used With All Lead And Hevi-Shot Loads. Experience The Bone Crushi

The Bismuth Bone Buster Choke Tube Is Designed To Produce Excellent, Dense patterns With All Bismuth Ammunition. It Is CNC Precision Machining From 17-4 Heat Treated Stainless Steel featuring a Longer Parallel Section (Inside The Choke) Over Conventional Factory Choke Tubes. Combine This With Extensive Testing With Various Loads And You Have The Perfect Choke To Deliver Devastating patterns With Bismuth. The Bismuth Chokes Can Be Used With All Lead And Hevi-Shot Loads. Experience The Bone Crushi