The Chip McCormick RANGE PRO 1911 magazine from CMC Products is a combination of some of CMC's best new magazine technology and all new basepad design that makes the RANGE PRO a top choice for carry, competition or general range use at a price that can't be beaten. The extended tube design allows the use of a longer high-performance spring and improved spring life over traditional extra capacity 1911 magazines. The all metal, anti-tilt follower is durable and easy to load while the polymer baseplate removes easily for cleaning and maintenance. Available in polished stainless or black fluoropolymer finish, the RANGE PRO will be one of your favorite 1911 magazines.9mm CaliberFits All Full-Size (Government Model) 1911 Handguns10 Round CapacityHeavy-Duty Corrosion Resistant Stainless Steel BodyFormed on All-New ToolingLaser Welded TubeIntegral Feed Ramp for Reliable Feeding of All Bullet DesignsNumbered Witness Holes for Visual Round CountUnique All-Steel Anti-Tilt Follower is Durable and Easy To LoadExtended Tube Design Allows the Use of a Longer SpringHigh Tensile Music Wire SpringRemovable Base Pad for Easy CleaningSmooth Finish for Easy Insertion / RemovalLong-Lasting Function in Dirty EnvironmentsMfg 100 percent Satisfaction Guarantee