Shotgun choke constrictions from Cylinder to Extra Full,
in .005 inches (.127mm) increments let you precisely match your load to the
shooting conditions, in a black oxidized finish. Long shotgun choke 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 constriction is marked on band so
there is no need to remove shotgun choke to verify size.