Bond Arms Black Jack, Derringer, 410 Gauge/45 Long Colt, 3.5 Barrel, Steel, Black, Black Wood Grips with Spade, Fixed Sights, 2 Rounds, With Trigger Guard BABJ45410 The Bond Arms Blackjack is a very special edition gun! An entirely crisp black gun with a touch of pizzazz with a silver spade above the hinge. It comes with a 3.5 in. barrel in a .45/.410 caliber and fascinating extended black ash grips with a spade on each side. An amazing gun to double down on.