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Browning Diamond Grade Choke Tubes have longer choke taper inside for use with back-bored barrels. They have 17-4 stainless steel construction with diamond-cut knurling that extends beyond the end of the barrel for easy removal and installation.

Features:

- Titanium nitride finish with black accent band
- Produce tighter patterns than Browning Invector-Plus choke tubes
- Matching tubes for the Citori 625
- Perfect concentricity for superior patterning

Specifications:

- Gauge: .410
- Constriction (inches): .010
- Type: Improved Cylinder