The Rock Island 54180B is a factory-spec 1911 magazine purpose-built for Rock Island Armory's High-Capacity A-2 platform pistols. If you're running a 9mm Luger or 22 TCM Rock Island 1911, this 17-round steel magazine gives you the extra capacity you need for range days, competition, or defensive loadouts without sacrificing the fit and reliability that comes from original equipment. It's manufactured to Armscor specifications—the same tolerances and materials used in factory mags—so you get drop-in compatibility and smooth feeding every time.
Rock Island 1911 owners often overlook the magazine as a weak link, but it's one of the easiest upgrades to standardize. Having a second or third mag on hand means more trigger time and fewer trips to the bench. The blued finish matches standard Rock Island builds, and the polymer base plate balances durability with a comfortable handling surface during reloads.
This is genuine OEM-spec hardware, not a generic aftermarket clone. If you're serious about your Rock Island 1911 platform, build your magazine inventory with parts designed and tested for your gun.
| Capacity | 17 rounds |
| Compatible Calibers | 9mm Luger, 22 TCM |
| Compatible Platforms | Rock Island Armory High-Capacity A-2 1911 pistols |
| Material | Steel body with polymer base plate |
| Finish | Blued |
| Part Number | 54180B |
This magazine is designed specifically for Rock Island Armory High-Capacity A-2 1911 models chambered in 9mm Luger or 22 TCM. Verify your pistol model before purchasing to ensure compatibility.
The 54180B holds 17 rounds and is engineered to factory specifications for Rock Island's high-capacity platform. It uses the same materials and manufacturing tolerances as original equipment, ensuring fit and reliability specific to your gun.
This magazine is compatible with Rock Island 1911 pistols chambered in either 9mm Luger or 22 TCM. Use the appropriate magazine for your specific chambering and platform.
Armscor
