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This Check-Mate magazine delivers the kind of no-nonsense reliability that competitive shooters and practical pistol users depend on. Built for the Staccato 2011 and compatible double-stack platforms like the Springfield Prodigy, it holds 13 rounds of .45 ACP in a compact 140mm package that works within most competition divisions and carry setups.
What makes it stand out is the construction. Each tube starts as American-milled stainless steel that gets through-hardened for strength and durability. The internals are polished to reduce friction and help rounds feed smoothly—no dragging or binding. The follower uses Check-Mate's proprietary anti-friction polymer design that works with their high-performance springs to keep every round feeding consistently from full to empty.
The double-stack geometry means more capacity than you'd get from a standard 1911 in the same footprint, without requiring gunsmith tuning or constant maintenance. Feed reliability has been a pain point on some double-stack platforms over the years, but these magazines address that directly with precision engineering and quality materials. If you've had magazine issues on your 2011, upgrading to purpose-built mags like these often solves the problem where cleaning or adjustments won't.
Compatible with Staccato 2011 pistols, Springfield Prodigy, EAA Girsan Witness 2311, and other modular grip 2011-style platforms that accept standard pattern magazines. These are made in the USA and backed by a lifetime warranty.
Yes. The Check-Mate Staccato 2011 .45 ACP magazine is designed for all standard-pattern double-stack 2011 platforms, including Springfield Prodigy, Staccato models, and similar frameworks. Just make sure your Prodigy is chambered in .45 ACP if you're using this mag. Most Prodigies are 9mm, so verify your caliber first.
Magazine quality is where a lot of 2011 owners run into feeding problems. Check-Mate builds these specifically for reliability with precision-engineered followers, polished internals that reduce friction, and through-hardened steel tubes. Many shooters find that swapping to quality aftermarket magazines solves feeding issues that cleaning or gunsmith adjustments couldn't fix.
The 140mm length works in most USPSA and IPSC divisions, including Oopen and Limited. If you're competing in a specific division, always check your rulebook to confirm length and capacity restrictions for that particular sport. Twelve or thirteen rounds in .45 is common for competitive applications.
Yes, they're built durable enough for duty and defensive use. The stainless steel construction is corrosion-resistant, and the anti-friction followers and high-performance springs keep them reliable through repeated use. That said, always test your full magazine and ammunition combination in your pistol before relying on it for any defensive purpose.
No. Check-Mate magazines come ready to use without gunsmith tuning. They're precision-manufactured in the USA with tight tolerances, so they should function reliably out of the box in compatible pistols. If you do experience any issues, Check-Mate offers a lifetime warranty.
This magazine fits all standard-pattern modular-grip 2011 pistols, including Staccato, Springfield Prodigy, EAA Girsan Witness 2311, Kimber 2K11, and many aftermarket 2011 builds. It does not fit the newer Staccato C 2024 or Staccato CS models, which use different magazine patterns. Check your pistol's manual or the manufacturer's website to confirm compatibility.
| UPC | 500204928242 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CM45-2011-140-S |
| Shipping Weight | 0.24 |
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