NBS Mil-Spec 6 Position Receiver Extension / Buffer Tube - AR15-Buffer-Tube

The NBS Mil-Spec Buffer Tube is a quality Receiver Extension (AKA Buffer Tube) machined from high strength American 7075-T6 Aluminum. This is a 6 position design and is a finished with Type 3 class 2 Hard Anodizing. It features incredibly smooth interior machining for quiet operation and less “sprioing” sound.