1911 .45 ACP
The Magazine Trusted by Professionals for 50 Years
This is the 1911 magazine we build for military contracts and firearms manufacturers. Same specs. Same materials. Same quality control. Now available directly to you.
What makes it different? Three things.
First: It feeds everything. Round-nose hardball. Hollow-points. Semi-wadcutters. Our hybrid feed lip design accommodates all bullet profiles reliably. No more buying specific magazines for specific ammo.
Second: It's built to last decades. Through-hardened stainless steel or high-carbon steel construction. Not just surface treatment - the entire tube is hardened for strength. Drop it on concrete. Get it wet. Keep shooting.
Third: The follower actually works. Our patented dimpled follower prevents over-insertion and reduces malfunctions. The anti-tilt design keeps rounds feeding straight, even under rapid fire.
Available in 7-round (flush-fit), 8-round and 10rd (extended) capacity. Stainless or blued finish. Both built to the same exacting standards.
Made in our New York or Georgia facility. Backed by a lifetime warranty.
| Caliber | .45 ACP |
| Capacity Options | 6rd, 7rd, 8rd, or 10rd |
| Material | Stainless steel or high-carbon steel |
| Construction | Through-hardened (full body, not surface only) |
| Feed Lips | Hybrid design (works with all bullet profiles) |
| Follower | Patented dimpled design with anti-tilt geometry |
| Base Options | Removable polymer or welded (7rd only) |
| Spring | Music wire, precision wound |
| Finish | Stainless steel or Blued carbon steel |
| Manufacturing | West Babylon, NY or Thomasville, GA |
| Warranty | Lifetime against manufacturing defects Learn more → |
✓ Yes, if your 1911 is:
- Chambered in .45 ACP
- Government Model (5" barrel)
- Commander (4.25" barrel)
- Officer's Model (3.5" barrel) - 7-round fits flush, 8-round will extend slightly
Compatible with most 1911's, including:
- ✓ Colt 1911 models
- ✓ Springfield Armory 1911s
- ✓ Kimber 1911s
- ✓ Ruger SR1911
- ✓ Remington R1
- ✓ Rock Island Armory
- ✓ Most custom 1911's with standard mag wells
✗ NOT Compatible with:
- ✗ 1911s chambered in other calibers (9mm, 10mm, .38 Super, .40 S&W) - these need caliber-specific magazines
- ✗ Double-stack 1911s (2011 pattern pistols)
- ✗ 1911s with proprietary magazine designs (rare)
Custom fit 1911s:
Some pistols with very tight mag wells may require minor fitting. This is normal and not a defect.
Not sure? Contact us - we'll help you figure it out.
Get Help →How do I know which capacity I need?
If you're not sure, start by determining which frame size your 1911 is. In most cases, a quick Google search will tell you - but always feel free to contact us for help.
Can I leave these loaded long term?
Yes. Our springs are designed for extended compression. What wears springs is repeated loading/unloading cycles, not staying compressed.
Will this work with hollow-point ammunition?
Absolutely. Our hybrid feed lips are designed to work with round-nose FMJ, hollow points, semi-wadcutters, and flat-point bullets. Load what you trust.
What's the break-in process?
Load to full capacity and let sit for 24-48 hours. Then load and unload several times. Most magazines work perfectly out of the box, but this can help speed things up.
How do I maintain these magazines?
Disassemble monthly if carried daily, quarterly for range use. Wipe down the body, clean the follower, inspect the spring. Apply light oil to the spring (not the follower). That's all there is to it.
When should I replace the spring?
When you notice the slide not locking back consistently or feeding becomes less reliable. With normal use, our springs last many years. High-volume shooters should inspect annually.
What's covered by the warranty?
Manufacturing defects for life. If the magazine fails due to material or workmanship issues, we replace it. Normal wear items (springs, followers worn) aren't covered, but we sell replacement parts affordably.
Do you ship to my state?
Check our shipping restrictions page for state-specific limitations.
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Function is perfect. Load and feed round as they should. The magazines drop free at the push of the button. Match my 1911 in color. I’m happy🤗
Had a feeding problem with a Les Baer 1911. After going through the pistol changing all the springs replacing springs in my magazines I seen your product on YouTube and decided to give it a try. Happy to say your new magazines made the pistol feed properly just ordered two more.
Nice, exactly what I expected, Checkmate was referred to me by a friend, quick process. Thanks. UPS did deliver to the incorrect address which was odd. but that is no fault of Checkmate.
The extended magazines work great! They fit my model perfectly. A couple of other places I have looked for them online claim they for my 1911 but just fall out or didn’t click into the frame. These one work great. Excited to find a place that sells them
Best mags to use.
Good price & great magazines
but couldn't m14 magazines, sooo sad
Fit great and work well
Seems very well made. Functioned flawlessly with snapcaps. Looking forward to trying it at the range before carrying.
Quality magazines, good fit.
They fit great and work perfectly !!!
Perfect fit, excellent finish. Works Great.
Tried with a 1942 era M1911A1 USGI pistol today. Worked flawlessly
Excellent product and Price
Delivery service was excellent
proudly made in usa
American made. American grade.