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There's a reason most compact 1911 owners eventually go looking for more magazines: the gun ships with one, and one is never enough. This ACT-MAG from Rock Island Armory fixes that. Manufactured by Armscor to the same specifications as the original equipment magazine that came with your pistol, it's a straight-up factory replacement with nothing cut and nothing changed.
The body is heat-treated steel with a blued finish, and the internals match what you'd expect from an OEM part: a steel spring wound from high-tensile piano wire and a polymer follower designed to feed reliably and cycle smoothly. The removable polymer baseplate keeps the overall profile trim, which matters on a compact platform where every bit of grip clearance counts. These magazines are manufactured in Italy, which is worth knowing for the folks who want to know where their parts come from.
One thing to be clear about: this is a compact-length magazine. It is sized specifically for the Rock Island Armory compact and officer-style 1911 frames chambered in .45 ACP. It will not function as a drop-in in a full-size Government Model 1911, so double-check your frame size before ordering.
Whether you're loading up for the range or rotating mags for carry practice, these are the real deal. Same stampings, same fit, same function as what came in the box. Pick up a couple and you won't have to chase brass every time you want to run more than a single string.
No. This is a compact-length magazine designed specifically for the shorter frame of the Rock Island Armory compact and officer-size 1911 pistols. It will not properly fit or function in a standard full-size Government Model 1911. If you have a full-size RIA 1911, look for the 8-round full-size ACT-MAG instead.
Yes. This is a genuine OEM Armscor/ACT-MAG magazine built to the same specifications and tolerances as the factory magazine included with the pistol. The only difference some buyers notice is that the original may be stamped Rock Island while this one may be stamped Armscor, but both are made in Italy to the same standards.
ACT-MAG is a well-regarded OEM magazine brand that has been supplied to multiple manufacturers over the years, and many buyers report solid compatibility with other compact 1911-pattern pistols. That said, fit can vary between manufacturers, so the safest bet is to confirm your pistol's magazine well specs before assuming it will drop in perfectly.
The body is constructed from heat-treated steel with a blued finish, and the spring is wound from high-tensile piano wire. This is not a budget aftermarket build, it's the same material spec as the original factory magazine. With normal care and occasional cleaning, these magazines hold up well over time.
Yes. The polymer baseplate is removable, which makes field stripping and cleaning the magazine straightforward. Regular magazine maintenance is always a good habit, and the removable baseplate makes it easy to inspect the spring and follower without any special tools.
| UPC | 4806015541721 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 54172 |
| Brand Fit | Rock Island |
| Caliber/Gauge | .45 ACP |
| Capacity | 7 |
| Color | Blue |
| Model | |
| Model Fit | 1911 CS |
| Package Height | 1.4 |
| Package Width | 3.0 |
| Product Type | Magazine |
| Shipping Weight | 0.15 |
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