Oct 23 2017 0183 322. Alien Gear Holsters. Alien Gear Holsters made a name for themselves by offering to exchange a customers Kydex holster free of charge when their concealed carry arsenal changes. They specialize in concealed carry holsters for both inside and outside the waistband. Although theyre new to the business 2013 Alien Gear Holsters quickly became considered one of the top holster manufacturers.