Description
This Springfield Armory magazine is purpose-built for full-size 1911 pistols chambered in .45 ACP. With 7-round capacity and a time-tested blued steel finish, it delivers the straightforward reliability that the 1911 platform is known for. The magazine is made to the same exacting standards as Springfield's original equipment, so it functions identically to what comes with new Springfield 1911s.
Springfield PI4523 Construction and Materials
The magazine uses heat-treated steel components throughout, including the follower and floor plate, designed to handle the demands of regular use without premature wear. The carbon silicon wire spring delivers consistent tension and reliable round stacking. The blued finish provides a classic look while resisting rust and corrosion, making it equally at home at the range, in competition, or for duty use.
Compatibility and Practical Details
This is a mil-spec design that works with government-spec 1911 frames from Springfield and other manufacturers using standard 1911 internals. The flush-fit baseplate allows for comfortable carry and snag-free drawing, while the witness holes on the rear let you verify your round count at a glance. The magazine base has two factory-drilled holes if you want to add a rubber base pad for extra cushioning.
Real-World Reliability
This isn't an exotic aftermarket design. It's the same magazine Springfield Armory makes for the military and their production pistols, which means it's been tested in actual use over decades. Users consistently report zero feeding issues with factory ammunition, and the straightforward design means there's nothing complicated to go wrong.
Key Specifications
- Caliber: .45 ACP
- Capacity: 7 Rounds
- Manufacturer: Springfield Armory
- Model: 1911
- Material: Heat-Treated Steel
- Finish: Blued
- Type: Detachable Magazine
- Length: 8.55 inches
- Manufacturer Part Number: PI4523
- UPC: 706397645236
- Compatibility: Full-Size 1911 Government and Champion Models
What’s Included
- 1 Springfield Armory 7-Round Blued Magazine
Frequently Asked Questions
Will this Springfield magazine fit other 1911 brands besides Springfield?
Yes. The PI4523 is built to mil-spec standards, so it works with any full-size 1911 that uses government-spec internals, including Colt, Rock Island, and most other 1911 clones. Some custom 1911s with tighter tolerances or non-standard frames may need a test fit, but standard government models accept it without issues.
Can I use this magazine with modern ammunition loads like +P?
The magazine is designed for standard .45 ACP loads. If you plan to run high-velocity or +P ammunition regularly, you might want to inspect the follower periodically for wear, as the magazine spring may work harder with these loads. For most shooters using standard ammunition, this is a non-issue.
How does the Springfield factory magazine compare to aftermarket options?
Factory Springfield magazines have a solid reputation for reliability and consistent fit. They won't have the fancy features of some premium aftermarket brands, but they're engineered conservatively and proven over decades of use. Most shooters find them more than adequate for range work, competition, and carry.
What's the witness hole feature for?
The witness holes on the back of the magazine let you see into the tube so you can quickly count your remaining rounds without unloading the magazine. It's a practical feature that makes it easy to verify round count during reloading drills or at the range.





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