The Match Grade 1911 magazine is a traditional USGI-style fixed base magazine with improvements in follower design, feed lip geometry, and materials. Match Grade die-controlled tolerances are held to +/- .001" which is more than 75% tighter than magazines made to typical military specifications. Springs are made from aerospace-grade rocket wire and large viewing holes are numbered to quickly determine round count at a glance. Features: Caliber: 9mm Capacity: 9 rounds 1911 Size: Full Size Improved tolerance stainless steel USGI Style tube with enhanced feed lips Numbered witness holes for visual round count Stainless steel follower with heavy-duty spring for long-lasting tension and durability High tensile Rocket Wire spring Drilled for base pad (base pad and screws sold separately) Flush fit for minimal bulk and easy concealment Smooth finish for easy insertion and removal Long lasting function in dirty environments