Phil White writes about the Alpha Openers... "I received two of the most popular Alpha Openers. They work well and if you can’t pop the cap with one of these you need to take a few trips to the gym.The first is a .50 cal polished FMJ and the other is a .50 cal cleaned up but not polished. This version has an honest to goodness API bullet. The company also makes another opener milled from a standard AR flash suppressor.