CMC Products Magazine, Classic, 45 ACP, 8 Rounds, Fits 1911, Stainless, M-RP-45FS8 The all-new Range Pro 1911 magazine is a combination of CMC's best magazine technology and all new basepad design that makes the Range Pro a top choice for carry" competition or general range use. The new extended tube design allows the use of a longer" stainless steel spring and improved spring life over traditional extra capacity 1911 magazines. The stainless steel anti-tilt follower is durable" promotes easy loading and was extensively tested for reliability with a wide range of bullet weights and designs. The polymer baseplate removes easily for cleaning and maintenance.