All things are not created equal and the XRING .22LR receiver is no exception. Its craftsmanship weightconscious design and innovative features make this receiver a step or ten above the rest. At its heart the billet machined XRING offers a dual spring guide rod system for reliability and functionality. This guide rod system coupled with the heattreated steel bolt provides a smooth and consistent shooting experience. Convenient throughtheback access makes cleaning your receiver a breeze allowing you to keep it running smoothly. It is constructed of 6061T6 aluminum. This model has a gunmetal gray finish.