The Check-Mate UHC 9mm magazine delivers high-capacity performance and reliability in 2011 and double-stack 1911's. Its flush-fit design holds 19 rounds without adding extra length, making it a great option for competition shooting and range training. This stainless steel 2011 9mm magazine withstands heavy use while delivering long-lasting durability and reliable performance. A smooth low-friction follower, and a high-quality spring system help ensure reliable feeding and consistent lock-back. This magazine can be used with many popular 2011-style platforms including Staccato, Springfield Prodigy, Kimber 2K11, and similar double-stack 1911 pistols. The Check-Mate UHC magazine offers a reliable upgrade for shooters looking for increased capacity and smooth performance.