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Check-Mate's 8-round magazine for full-size 1911 pistols in .45 ACP is built with American-milled stainless and high-carbon steel, then through-hardened for exceptional strength and durability that resists cracking and feed-lip spread even after extensive use.
Every tube gets polished inside and out to minimize friction and ensure smooth feeding. The welded base plate adds structural integrity while maintaining a clean, flush-fit profile that works for range days, competition, or carry. Factory-drilled witness holes let you count your rounds at a glance without unloading the magazine.
Check-Mate has been manufacturing magazines since the 1970s and supplies factory magazines to major pistol makers including SIG Sauer, Smith & Wesson, and Para Ordnance. Their 1911 magazines are backed by a manufacturer's lifetime warranty and built to handle serious use with the kind of attention to detail you'd expect from a company that's fulfilled over 400 military contracts.
Check-Mate magazines are designed for full-size 1911 platforms and maintain mil-spec dimensions for compatibility with standard Government and Commander-length pistols. If you own a factory Colt, Kimber, Springfield Armory, or similar full-size 1911, this magazine will fit. Some 1911 models with tighter tolerances may benefit from a break-in period, but Check-Mate's precision manufacturing means fitment is generally tight and consistent.
The 8-round magazine holds one additional round compared to the 7-round version, useful when you want maximum capacity without extending the magazine much beyond the grip frame. The 7-round is often preferred for carry since it's slightly shorter, while the 8-round is popular for competition and training. Both offer the same quality construction and reliability.
Most 1911s will fully seat an 8-round magazine with a full load and the slide closed, though some models with very tight tolerances or certain spring conditions may require loading to 7 rounds for that particular gun. Check-Mate's high-performance spring is stiffer than standard GI springs, which is a strength feature but can take some break-in on certain firearms.
Yes, the polished stainless steel resists corrosion better than parkerized or blued finishes, making it a solid choice if you carry in humid conditions or near salt water. Stainless requires less maintenance than carbon steel. Even so, regular cleaning and light oiling will extend the life of any magazine.
Check-Mate uses through-hardened construction to prevent feed-lip spread and cracking over time. They polish tubes inside and out to reduce friction, use proprietary welding techniques for solid base plates, and build high-performance springs. Plus, they're the actual OEM supplier for many major gun manufacturers, so you may already own a Check-Mate magazine without knowing it.
Check-Mate backs all their magazines with a manufacturer's lifetime warranty covering defects in materials and workmanship. This covers the tube, spring, follower, and base plate under normal use conditions.
| UPC | 850020492268 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CM45-1911-8-S |
| Shipping Weight | 0.18 |
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