Bond Arms Black Jack 45 (Long) Colt 3.5in Black Break Action - 2 Rounds. The Bond Arms Blackjack is a very special edition gun. It is an entirely crisp black gun with a touch of pizzazz with a silver spade above the hinge. It comes with a 3.5in 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.