Colt 1911 Government 45 ACP 7-Round Magazine Stainless Steel

The Colt SP572491RP delivers the reliable feeding performance that 1911 pistols demand. This factory-engineered magazine combines traditional 1911 functionality with modern stainless steel construction for enhanced durability and corrosion resistance.

What Makes This Different

Unlike aftermarket alternatives, this Colt factory magazine maintains the precise tolerances and feed geometry that Government and Commander-length 1911 frames require. The stainless steel construction resists corrosion from sweat, moisture, and cleaning solvents while maintaining consistent spring tension over thousands of loading cycles. Factory specifications ensure proper lockback function and reliable chambering of 45 ACP cartridges.

Key Features

• 7-round capacity optimized for 45 ACP cartridge dimensions
• Stainless steel construction resists corrosion and wear
• Compatible with Colt Government and Commander 1911 frames
• Factory-tuned follower geometry ensures smooth feeding
• Heat-treated spring maintains tension through extended use
• Removable floorplate allows disassembly for cleaning
• Witness holes provide visual round count verification

Range testing demonstrates consistent feeding across various 45 ACP loads, from 185-grain target rounds to 230-grain defensive ammunition. The magazine functions reliably in competition environments where rapid reloads demand immediate chambering. Law enforcement and military users benefit from the corrosion resistance during extended carry periods in humid conditions.

Technical Specs

• Capacity: 7 rounds of 45 ACP
• Construction: Stainless steel body and floorplate
• Compatibility: Colt 1911 Government and Commander frames
• Overall Length: Approximately 3.2 inches
• Weight: 3.1 ounces (empty)
• Spring: Heat-treated carbon steel
• Follower: Machined steel with anti-tilt design
• Finish: Brushed stainless steel

Colt's factory engineering ensures this magazine integrates seamlessly with 1911 pistol mechanisms. The stainless steel construction provides long-term value through reduced maintenance requirements and extended service life compared to standard carbon steel magazines.