The Strike Industries T-Bone Charging Handle for .223/5.56 AR-15's feature a patented gas redirect system that allows you to configure the gas to exit only left, only right or evenly to both sides. The shaft of the charging handle is machined from 7000 series aluminum which excels in applications requiring lightweight and high strength. However, with comfort and control in mind, the T-Bone latchless handles are made from SI PolyFlex polymer. The handles can be easily swapped with optional (coming soon) different sizes and styles. The latchless feature of the T-Bone gives minimal wear and tear on your AR upper receiver compared to traditional charging handles on the market. The Strike Mfg: Strike Industries