Built to endure the competitive edge this high-performance Beretta OptimaChoke HP 20 Gauge Modified Flush Steel Choke Tube is crafted from high-strength steel with a durable nickel-alloy coating for superior corrosion resistance. Designed for 20-gauge barrels its modified constriction provides optimal shot patterns at distances of 50+ yards. Fully compatible with all Beretta barrels threaded for OptimaChoke HP it features a .611 constriction diameter and a sleek silver finish. Essential for consistent performance and reliability without compromise.