These interchangeable T-Bone latches feature the SI patented gas redirect system that allows you to configure the gas to exit only left, only right or evenly to both sides. With comfort and control in mind, the T-Bone latchless handles are made from SI PolyFlex polymer. 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 Industries Porterhouse or Tenderloin T-Bone Charging Handle Latches gives you a modular way to direct the gas and setup the feel and look for one of the most overlooked and essential part of your AR upper receiver. Porterhouse/Large: The Strike Industries Porterho Mfg: Strike Industries