Browning 12G Invector DS- Spectrum Ported Choke- Cylinder (.000")

Stainless Choke Tube

Shotgun choke constriction is marked on band so there is no need to remove choke to verify size. Shotgun choke constriction from Cylinder to Extra Full, in .005 inches (.127mm) increments let you precisely match your load to the shooting conditions. Long tube extends beyond the length of the muzzle, features highly polished interior for less pellet deformation, reduced fliers and tighter patterns. Knurled grasping band speeds installation and removal. Shotgun choke constrictions are marked on band so there is no need to remove choke to verify size. Helical rifled Diffusion spreader tubes provide a pattern that is more open than cylinder.   It is not recommended to shoot Federal's Black Cloud or any of their ammunition that utilizes their Flight Control Wad in ported chokes due to interference with its performance. Please note, you can shoot steel through our 17-4, stainless steel chokes, Cylinder through Improved Modified only. Please see chart below for lead to steel conversion.

Note on Invector DS Chokes: Browning factory chokes have a brass ring for a gas seal at the bottom of the choke, on Briley Replacements for Invector DS there is a ring machined directly in the steel of the choke’s body which performs the same sealing function. This may look a little different, but rest assured this is the correct choke.