Lead & Steel 4140 Nitride Quality Gas Block

The Lead & Steel QGB is CNC-machined from 4140 carbon steel, with a consistent 0.750” ID to provide a similar thermal expansion coefficient to the barrel. Each gas block is individually gauged before being nitrided. If you want peace of mind, look no further than the QGB! Specifications for Lead & Steel 4140 Nitride Quality Gas Block: Manufacturer: Lead & Steel Color: Black Fabric/Material: CNC Machined Gun Make: AR Platform Features of Lead & Steel L&S 4140 Nitride Quality Gas Block – 0.750in .625in ID Black Nitride Precision CNC machined Package Contents: Lead & Steel L&S 4140 Nitride Quality Gas Block – 0.750in 2 gas block screws