Description
The MC1911SC is a compact, officer-length 1911 that a lot of people buy intending to carry it, and then quickly realize one magazine isn't going to cut it. This is the direct factory replacement from Girsan and EAA, built to the same tolerances as the magazine that came in the box. That means no fitting, no feed tweaks, no wondering if it'll run. It goes in, locks up, and feeds.
The body is steel with a black corrosion-resistant finish. Inside, a high-tensile spring works with a flat steel follower to keep rounds feeding consistently under the kind of pressure that makes cheaper magazines choke. The flush-fitting steel baseplate keeps the profile clean and snag-free, which matters whether you're pulling from a holster on the range or carrying concealed.
The window cutout along the side is worth mentioning specifically because it's part of what makes the MC1911SC a thoughtful design. The pistol's G10 grips have corresponding window panels, so you can get a real-time round count just by glancing at the side of the gun. No guessing, no counting. That kind of situational awareness feature is genuinely useful, and this magazine is built to take full advantage of it.
Compatibility extends beyond just the MC1911SC Ultimate. This magazine is also a good fit for most other officer and compact-size 1911 pistols chambered in .45 ACP, so if you run more than one compact 1911 in your safe, there's a decent chance this plays well with the whole lineup. Pick up at least one spare if you're planning to shoot this gun with any regularity.
Key Specifications
- Manufacturer: European American Armory / EAA Corp (Girsan)
- MPN: 390500
- UPC: 741566904042
- Model Fit: Girsan MC1911SC Ultimate
- Caliber: .45 ACP
- Capacity: 6 Rounds
- Body Material: Steel
- Finish: Black, corrosion-resistant
- Baseplate: Flush-fitting steel
- Spring: High-tensile steel
- Follower: Flat steel
- Window: Yes, side window cutout for round-count visibility
- Magazine Type: Pistol, single-stack
- Compatibility: MC1911SC Ultimate; most officer/compact-size .45 ACP 1911 pistols
What’s Included
- 1x Girsan MC1911SC 6-round .45 ACP steel windowed magazine
Frequently Asked Questions
Will this magazine work with the Girsan MC1911SC Ultimate right out of the box?
Yes. This is the factory OEM magazine produced to the same specifications as the one that ships with the MC1911SC Ultimate, so fit and function should be seamless. No modification or break-in is required. It's the most reliable drop-in option for that pistol.
What does the window cutout on this magazine actually do?
The MC1911SC Ultimate is equipped with G10 grip panels that have matching window openings on each side of the frame. When this windowed magazine is seated in the gun, you can see through the grip window directly to the magazine body and get a quick visual round count without removing the magazine. It's a practical feature for anyone carrying the pistol or running drills.
Is this magazine compatible with other compact or officer-size 1911 pistols in .45 ACP?
It's primarily designed for the Girsan MC1911SC Ultimate, but it is also reported to be compatible with most other officer and compact-size 1911 pistols chambered in .45 ACP. That said, magazine fit can vary across manufacturers and generations, so if you're using it in a different pistol, it's worth confirming the fit before relying on it.
How many magazines does the MC1911SC Ultimate come with from the factory?
The Girsan MC1911SC Ultimate typically ships with one magazine included. Most people find that a single magazine isn't practical for regular range sessions or carry use, which is exactly why having at least one or two factory spares on hand makes sense.
What is the magazine body made of, and will it hold up over time?
The body is constructed from steel with a black corrosion-resistant finish, making it considerably more durable than polymer alternatives. The internals include a high-tensile steel spring and a flat steel follower, both of which contribute to consistent feeding and long-term reliability even with regular use.
Does the flush baseplate affect how the magazine sits in the gun?
The flush-fitting steel baseplate is designed to sit even with the bottom of the grip frame on the MC1911SC, maintaining the compact profile of the pistol. This is particularly important for anyone carrying concealed, since a protruding baseplate can interfere with holster fit and print through clothing.





Reviews
There are no reviews yet.