Sig Sauer MAG1911458 1911 Magazine 8rd 45ACP Stainless Steel

The Sig Sauer MAG1911458 delivers reliable feeding and enhanced durability for 1911 pistols chambered in 45 ACP. This 8-round magazine features stainless steel construction that resists corrosion while maintaining precise tolerances for consistent performance.

What Makes This Different

The stainless steel body construction sets this magazine apart from standard blued steel alternatives, providing superior corrosion resistance in humid or marine environments. The precision-formed body maintains consistent dimensions even after thousands of loading cycles, while the witness holes allow for quick round count verification. Factory specifications ensure drop-free reliability and proper lockback function with compatible 1911 platforms.

Key Features

• 8-round capacity optimized for 45 ACP cartridges
• Stainless steel body construction resists rust and corrosion
• Witness holes for visual round count confirmation
• Compatible with Sig Sauer 1911 pistols and most standard 1911 platforms
• Factory-tuned spring tension for reliable feeding
• Precision-formed follower ensures smooth cartridge presentation
• Drop-free design for rapid reloads during tactical situations

Field testing demonstrates consistent feeding across various 45 ACP load weights, from 185-grain target rounds to 230-grain ball ammunition. The magazine performs reliably in temperatures ranging from -20°F to 140°F, making it suitable for duty carry, competitive shooting, and recreational use. The stainless finish maintains its appearance even with frequent handling and holster contact.

Technical Specs

• Capacity: 8 rounds of 45 ACP
• Construction: Stainless steel body with steel spring
• Compatibility: Sig Sauer 1911 pistols and most standard 1911 frames
• Overall Length: Approximately 4.2 inches
• Width: 0.9 inches at base
• Weight: 3.2 ounces unloaded
• Finish: Brushed stainless steel
• Country of Origin: USA

Professional shooters and law enforcement agencies choose this magazine for its proven track record of consistent performance under demanding conditions. The factory backing ensures quality control standards that meet both civilian and duty requirements.