This is the inner magazine tube Winchester 9422, .22 cal WMR, HMR, lever action rifle. It fits outer tubes that are approx. The tube its self (not including Forearm plug or follower) is 19 1/8 inches long. It is fully assembled and ready to install, with Forearm plug, follower and magazine spring. If you have the 94-22 short, long, Long Rifle you need mag tube number (MT9422LR)