
Availability: In Stock
The Magnum Research MAG1911458 is an 8-round detachable magazine built for .45 ACP 1911 pistols, specifically engineered for Magnum Research's 1911 C, GR, and G models. If you run a modern 1911 platform—whether you're at the range, in competition, or keeping a reliable defensive gun on your hip—having spare magazines is non-negotiable. A quality spare mag means you're never caught short on ammo capacity, reload practice, or simple logistics on a busy shooting day.
This magazine holds eight rounds of .45 ACP, the proven stopper caliber that's been trusted in 1911s for over a century. The detachable design makes loading, unloading, and maintenance straightforward, and the black finish matches most modern 1911 builds. For shooters who already own a Magnum Research 1911 C, GR, or G model, this is the factory-spec magazine that ensures reliable feeding and compatibility without guesswork.
Whether you're stocking spares for range sessions, building a backup mag rotation, or just ensuring you're never caught with a dry gun, the MAG1911458 gives you the capacity and reliability that comes with Magnum Research's engineering. It's a solid addition to any .45 ACP 1911 shooter's kit.
| Caliber | .45 ACP |
| Capacity | 8 rounds |
| Type | Detachable magazine |
| Finish | Black |
| Fits | Magnum Research 1911 C/GR/G models |
The MAG1911458 is engineered for Magnum Research 1911 C, GR, and G models specifically. If you own one of those platforms, compatibility is guaranteed. For other 1911 builds, verify compatibility before purchase.
This magazine holds 8 rounds of .45 ACP.
Yes—the magazine is detachable, which makes it easy to load, unload, and clean.

SKU: 115757146 • Width: 3in • Height: 0.9in • Depth: 8.6in • Weight: 0.15oz





Availability: In Stock
The Magnum Research MAG1911458 is an 8-round detachable magazine built for .45 ACP 1911 pistols, specifically engineered for Magnum Research's 1911 C, GR, and G models. If you run a modern 1911 platform—whether you're at the range, in competition, or keeping a reliable defensive gun on your hip—having spare magazines is non-negotiable. A quality spare mag means you're never caught short on ammo capacity, reload practice, or simple logistics on a busy shooting day.
This magazine holds eight rounds of .45 ACP, the proven stopper caliber that's been trusted in 1911s for over a century. The detachable design makes loading, unloading, and maintenance straightforward, and the black finish matches most modern 1911 builds. For shooters who already own a Magnum Research 1911 C, GR, or G model, this is the factory-spec magazine that ensures reliable feeding and compatibility without guesswork.
Whether you're stocking spares for range sessions, building a backup mag rotation, or just ensuring you're never caught with a dry gun, the MAG1911458 gives you the capacity and reliability that comes with Magnum Research's engineering. It's a solid addition to any .45 ACP 1911 shooter's kit.
| Caliber | .45 ACP |
| Capacity | 8 rounds |
| Type | Detachable magazine |
| Finish | Black |
| Fits | Magnum Research 1911 C/GR/G models |
The MAG1911458 is engineered for Magnum Research 1911 C, GR, and G models specifically. If you own one of those platforms, compatibility is guaranteed. For other 1911 builds, verify compatibility before purchase.
This magazine holds 8 rounds of .45 ACP.
Yes—the magazine is detachable, which makes it easy to load, unload, and clean.
SKU: 115757146 • Width: 3in • Height: 0.9in • Depth: 8.6in • Weight: 0.15oz
