Wilson CombatA(R), with a firmly established reputation for outstanding quality, the highest reliability, and superb service both before and after the sale has built hundreds of thousands of 1911 single-stack magazines. We get a lot of feedback about magazines, and magazine performance - and we listen. Our magazines have undergone 3 design and/or material changes, each carefully evaluated and proven before they were released to the market. The result of our latest effort is a completely redesigned magazine with the features we've heard you ask for. The Wilson Combat Elite Tactical magazine started with a blank sheet of paper and 30+ years of 1911 and 1911 magazine experience. It has set a new standard in 1911 magazines while redefining state-of-the-art. We've blended the latest improvements in manufacturing and materials technology with our own real-world shooting experience to provide quality, quality, and more quality. From material selection to manufacturing process to final testing - this magazine is built like your life, and ours, depended on it, as someday it may. No compromises, just stone-cold reliability you can depend on. The ETM is primarily a combat magazine, but if you're a competition shooter, you just may gain that critical advantage that will move you past the competition. The real world for a combat pistol isn't always in a dry, protected environment. So we built the ETM to be impervious to the elements. Every component is manufactured from either a high-grade stainless steel or super tough nylon. We worried about grime and corrosion when we designed the ETM, so you will never have to. Caliber: .45 ACP Capacity: 10 rounds 1911 Size: Full size Increased reliability in all 1911 pistols Aircraft grade certified stainless steel tube resists corrosion Strongest tube developed preventing cracked feed lips and tube spreading .025" tube walls Refined radius for each bend in the tube to take advantage of the strength in the stainless steel Proprietary custom designed welding process Multi-step tumbling and finishing process provides smooth follower operation and insertion into the weapon Observation slots moved to the rear of the tube exactly where they need to be to maintain the structural integrity required Innovative follower design with extended skirt ensures stability in operation and minimizes creep from the tube when your magazine is empty Fiber filled nylon follower The ETM seats and locks in the weapon with the slide forward