Description
When your Springfield Armory 1911 Ultra Compact 9mm needs a spare mag, this is the one to grab. The PI0920 is a true OEM replacement built to Springfield Armory's own specifications and manufactured with the same materials and tolerances as the mag that shipped with your pistol. That matters more than it might seem with the Ultra Compact, which runs an Officer-sized frame that does not play as nicely with random aftermarket magazines as a full-size Government model might.
The entire magazine body, follower, and floor plate are stainless steel, with a high-tensile spring steel spring inside. The stainless construction is practical on a carry gun since it holds up well to the humidity and sweat exposure that comes with regular concealed carry use. The silver finish also matches seamlessly with stainless-framed Ultra Compact pistols.
Capacity sits at 8 rounds of 9mm, which is on the generous side for an Officer-sized 1911 platform. The magazine is detachable, single-stack, and sized correctly for the shorter grip frame of the Ultra Compact rather than the longer Government or Commander frame lengths. Using the wrong length magazine in a compact 1911 can cause feeding issues or prevent the slide from locking back reliably on empty, so sticking with a magazine designed specifically for this platform is genuinely the better call.
This is a solid grab for anyone picking up a backup magazine, refreshing an aging mag whose spring has seen better days, or rounding out a range kit for this pistol. The 1911 Ultra Compact 9mm is not the most common gun on the market, and finding a confirmed-fit magazine for it is not always straightforward, so having this one in hand is worth it.
Key Specifications
- Manufacturer Part Number: PI0920
- UPC: 706397851415
- Caliber: 9mm Luger
- Capacity: 8 Rounds
- Fits: Springfield Armory 1911 Ultra Compact
- Body Material: Stainless Steel
- Follower Material: Stainless Steel
- Spring Material: High Tensile Spring Steel
- Finish: Stainless
- Feed Type: Single Stack
- Magazine Type: Detachable
- Overall Length: 4.4 in
- Shipping Weight: 0.15 lbs
Frequently Asked Questions
Will this magazine fit a full-size or Commander-length Springfield 1911?
No, the PI0920 is sized for the shorter Officer-sized frame of the 1911 Ultra Compact and will not function correctly in a Government or Commander-length 1911. Using a magazine designed for the wrong frame length can cause feeding problems or prevent the slide from locking back on empty. Always make sure to match the magazine to the specific frame size of your pistol.
Is this a genuine Springfield Armory factory magazine or an aftermarket product?
This is a genuine OEM Springfield Armory magazine manufactured to the same specifications, tolerances, and materials as the magazine that originally came with the pistol. For a platform like the 1911 Ultra Compact where the compact frame can be particular about what fits and feeds reliably, running a factory mag is simply the lower-risk choice.
Why does the Springfield 1911 Ultra Compact in 9mm hold 8 rounds in a compact frame?
The 9mm cartridge is slimmer than a .45 ACP, which allows a slightly higher round count in the same magazine body length. An Officer-sized .45 ACP 1911 magazine typically holds 6 or 7 rounds, but the same frame length in 9mm can accommodate 8 rounds comfortably. It is one of the practical advantages of the 9mm chambering in a compact 1911 platform.
How many of these magazines should I have for my Ultra Compact?
For range use, having at least two to three magazines makes your sessions more efficient and reduces wear on any single mag from constant loading and unloading cycles. For carry purposes, a second magazine is strongly recommended. Because the 1911 Ultra Compact 9mm is a less common model, stocking an extra magazine while you can find one in stock is a smart move.
Can I use aftermarket 9mm compact 1911 magazines in my Springfield Ultra Compact?
Some aftermarket magazines from reputable makers will work, but compact 1911s in 9mm are notoriously less forgiving of magazine variation than their .45 ACP counterparts. Springfield 1911 owners have reported fit and reliability issues with certain third-party options that do not come up with factory magazines. If you do try aftermarket options, verify fit and function thoroughly before relying on them.





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