You might be thinking right now, ""Hey, it's just an M-LOK segment. Who cares?"" If you're serious about building a serious firearm system that's prepared to handle anything you throw at it, then yes, it matters. The Troy Industries M-LOK rail section you mount to your gun might be the difference between having easy, dependable access to your accessories or struggling to keep your system solid and secure. These Troy M-LOK Rail Sections are not your grandpa's accessory-attachment tool. Machined from aluminum and measuring 3 inches long, these high-quality segments are guaranteed to meet all specifications exactly, ensuring you get a tight lock on yo Mfg: Troy Industries