The Mec-Gar MGCG4510B delivers reliable feeding and extended capacity for 1911 Government pistols chambered in 45 ACP. This factory-quality magazine addresses the common need for additional rounds beyond standard 7-round capacity while maintaining the proven reliability shooters demand from their defensive and competition firearms.
What Makes This Different
Mec-Gar magazines utilize heat-treated carbon steel construction with precision-formed feed lips that maintain consistent geometry under repeated use. The anti-friction coating on internal components reduces wear while ensuring smooth cartridge presentation to the chamber. Unlike aftermarket alternatives that may require fitting, this magazine drops in ready to function with proper 1911 Government frame dimensions.
Key Features
- 10-round capacity increases firepower by 43% over standard 7-round magazines
 
- Heat-treated carbon steel body withstands repeated compression cycles
 
- Precision-formed feed lips maintain consistent cartridge presentation
 
- Anti-friction internal coating reduces component wear and binding
 
- Standard blue finish matches most 1911 Government pistols
 
- Drop-in compatibility with full-size 1911 Government frames
 
- Removable baseplate allows disassembly for cleaning and maintenance
 
Competitive shooters benefit from the extended capacity during USPSA and IDPA matches where magazine changes cost valuable seconds. The additional three rounds provide tactical advantages in defensive scenarios while maintaining the slim profile that makes 1911 pistols concealable. Law enforcement officers appreciate the extra ammunition capacity without requiring equipment changes to existing holsters and magazine pouches.
Technical Specs
- Capacity: 10 rounds of 45 ACP ammunition
 
- Compatibility: 1911 Government full-size frames
 
- Construction: Heat-treated carbon steel body
 
- Finish: Standard blue coating
 
- Spring: Music wire construction for consistent tension
 
- Follower: Anti-tilt design prevents binding
 
- Baseplate: Removable for maintenance access
 
- Country of Origin: Italy
 
Mec-Gar's reputation as an OEM supplier to major firearms manufacturers translates directly to aftermarket reliability in this extended-capacity magazine. The combination of proven materials, precise manufacturing tolerances, and field-tested design delivers the performance serious shooters require from their ammunition feeding system.