
Availability: In Stock
A reliable 8-round magazine purpose-built for 1911 Government models chambered in .45 ACP, the ProMag COL03 delivers the capacity and durability you need whether you're running drills at the range or carrying a platform you trust. This is a workhorse detachable magazine designed around a classic platform—straightforward, no-frills engineering that respects what 1911 shooters expect from their gear.
ProMag magazines are manufactured and assembled in the USA using heat-treated chrome silicon wire springs engineered to withstand repeated loading cycles. The construction emphasizes rugged reliability: springs are precision-wound to exacting standards, and the assembly process incorporates quality checks throughout to maintain consistency across production. You get a magazine that feeds reliably and holds up to regular use.
The COL03 features blued steel construction and is designed for easy loading so you can top off your magazine without fighting it. Whether you need a spare mag for your duty 1911, a backup for competition, or simply want redundancy in your rotation, this magazine offers the straightforward performance 1911 shooters have relied on for over a century. Backed by a lifetime guarantee against manufacturer defects, it's a no-nonsense choice for a no-nonsense gun.
| Caliber | .45 ACP |
| Capacity | 8 rounds |
| Firearm Compatibility | 1911 Government |
| Type | Detachable Magazine |
| Finish | Blued |
| Spring Material | Heat-treated chrome silicon wire |
| Manufacture | USA |
The ProMag COL03 is designed specifically for 1911 Government models chambered in .45 ACP. If you own a standard-size Government model in that caliber, this magazine should be compatible. If you have a variant 1911 (compact, officer's, or non-Government), verify your model before purchasing.
The COL03 has an 8-round capacity, matching the standard single-stack magazine capacity for full-size 1911 Government pistols.
You receive one ProMag COL03 detachable magazine.
Yes. ProMag backs the COL03 with a lifetime guarantee against manufacturer defects.



SKU: 115740605 • Width: 2.3in • Height: 1.3in • Depth: 9.6in • Weight: 0.25oz
Availability: In Stock
A reliable 8-round magazine purpose-built for 1911 Government models chambered in .45 ACP, the ProMag COL03 delivers the capacity and durability you need whether you're running drills at the range or carrying a platform you trust. This is a workhorse detachable magazine designed around a classic platform—straightforward, no-frills engineering that respects what 1911 shooters expect from their gear.
ProMag magazines are manufactured and assembled in the USA using heat-treated chrome silicon wire springs engineered to withstand repeated loading cycles. The construction emphasizes rugged reliability: springs are precision-wound to exacting standards, and the assembly process incorporates quality checks throughout to maintain consistency across production. You get a magazine that feeds reliably and holds up to regular use.
The COL03 features blued steel construction and is designed for easy loading so you can top off your magazine without fighting it. Whether you need a spare mag for your duty 1911, a backup for competition, or simply want redundancy in your rotation, this magazine offers the straightforward performance 1911 shooters have relied on for over a century. Backed by a lifetime guarantee against manufacturer defects, it's a no-nonsense choice for a no-nonsense gun.
| Caliber | .45 ACP |
| Capacity | 8 rounds |
| Firearm Compatibility | 1911 Government |
| Type | Detachable Magazine |
| Finish | Blued |
| Spring Material | Heat-treated chrome silicon wire |
| Manufacture | USA |
The ProMag COL03 is designed specifically for 1911 Government models chambered in .45 ACP. If you own a standard-size Government model in that caliber, this magazine should be compatible. If you have a variant 1911 (compact, officer's, or non-Government), verify your model before purchasing.
The COL03 has an 8-round capacity, matching the standard single-stack magazine capacity for full-size 1911 Government pistols.
You receive one ProMag COL03 detachable magazine.
Yes. ProMag backs the COL03 with a lifetime guarantee against manufacturer defects.
SKU: 115740605 • Width: 2.3in • Height: 1.3in • Depth: 9.6in • Weight: 0.25oz


