This Open Top Multi-Fit Belt Holster, conveniently referred to as the BH2.4, offers excellent retention for a wide range of firearms. Focusing on the full frame firearms ranging from 4a ^2 to 5a ^2. The BH2.4 is designed to provide incredible retention while allowing a smooth an unencumbered draw. The BH2.4 has become a favorite for law-enforcement officials and off-duty military, with its ability to carry the M17 and M9's of the world.