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