The K1 is a beautiful bolt-action marker from Sheridan, like the K-series that followed, it featured a wooden stock and tilting safety mechanism as could be found on some of their air rifles. It is powered by a single 12 gram cylinder in the lower tube, which when combined with the long barrel results in a rather anemic shot count. Its length, rock-back and tilt reload, and bolt action, make for a somewhat clunky marker to operate. It does however have a sense of style that makes it stand out anywhere it goes.