Chip McCormick 1911 Compact .45 ACP 7 Round Pistol Magazine Standard Stainless 7. Match Grade die-controlled tolerances are held to +/- .001inch which is more than 75percent 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. The stainless steel match grade magazine features a welded base plate for the ultimate in durability drilled for base pad. Specifications for Chip McCormick 1911 Compact .45 ACP 7 Round Pistol Magazine: Manufacturer: Chip McCormick Color: Stainless Fabric/Material: Stainless Steel Gun Make: 1911 Platform Gun Model: 1911 Compact Gun Type: Pistol Caliber: .45 ACP Magazine Capacity: 7 Round Quantity: 1 Capacity: 7 Rounds Features of Chip McCormick Classic 1911 Compact .45 ACP 7 Round Pistol Magazine Improved tolerance stainless steel USGI Style tube with enhanced feed lips Laser welded tube 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 Welded base plate for the ultimate in durability 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 CM Products 100percent satisfaction guarantee Package Contents: Chip McCormick 1911 Compact .45 ACP 7 Round Pistol Magazine What firearm models does the manufacturer say Chip McCormick 1911 Compact .45 ACP 7 Round Pistol Magazine is compatible with? The manufacturer suggests that Chip McCormick 1911 Compact .45 ACP 7 Round Pistol Magazine is compatible with 1911 CompactChip McCormick MCL45CP7: 1911 Compact .45 ACP 7 Round Pistol Magazine Standard Stainless