The Browning Diamond Grade Choke Tubes have a longer choke taper inside Invector-Plus choke tubes for use with back-bored barrels and have matching tubes for the Citori 625. Sturdy with 17-4 stainless steel construction, the Diamond Grade Choke Tube has absolutely perfect concentricity for superior patterning.
Diamond-cut knurling extends beyond the end of the barrel for easy removal and installation and features a Titanium nitride finish with black accent band. Browning Diamond Grade choke tubes produce tighter patterns than Browning Invector-Plus choke tubes.