Description
The CMMG .350 Legend magazine is purpose-built for your AR-15 chambered in .350 Legend, a straight-walled cartridge that requires its own specialized magazines. This isn't just any AR magazine with different markings, it's engineered with the dimensions and geometry needed to handle the larger diameter of the .350 Legend round, something standard 5.56 magazines simply can't do reliably.
Material and Construction
You're getting a stainless steel body with a durable black finish that handles harsh field conditions well. The stainless construction resists corrosion, which matters if you're using this for hunting trips or extended storage. The 20-round capacity gives you extended shooting sessions without constant reloads, while keeping a footprint that's still manageable for hunting applications.
Feeding Reliability
The anti-tilt follower keeps cartridges properly positioned as they move up the magazine, preventing the kind of misfeeds you'd get with standard AR magazines. This is critical because the .350 Legend has a bigger case diameter than 5.56, and getting the geometry right between the magazine body, follower, and feed lips makes all the difference between smooth cycling and frustration. CMMG engineered this magazine to work with the cartridge's unique straight-walled design.
Made in the USA and backed by CMMG's lifetime warranty, this magazine is a solid backup piece or primary mag for your hunting rifle setup. Whether you're zeroing at the range or getting ready for the season, having a dependable magazine you trust makes the whole experience better.
Key Specifications
- Caliber: .350 Legend
- Capacity: 20 rounds
- Material: Stainless Steel
- Finish: Black
- Follower Type: Anti-tilt
- Platform: AR-15
- Magazine Type: Detachable, AR-pattern
- Length: 5.65 inches
- Width: 5.15 inches
- Height: 1.4 inches
- Manufacturer: CMMG
- Manufacturer Part Number: 35AFC66
- UPC: 810046230350
- Warranty: Lifetime
What’s Included
- 1x CMMG .350 Legend 20-round magazine
Frequently Asked Questions
Can I use this .350 Legend magazine in a standard 5.56 AR-15?
No, this magazine is designed specifically for .350 Legend. Standard 5.56 or 5.45 magazines won't work with .350 Legend ammunition, and vice versa. The .350 Legend has a larger case diameter and requires its own magazines with properly engineered geometry for reliable feeding.
Is the anti-tilt follower really that important?
Yes, it is. The anti-tilt follower prevents the cartridge from tilting or stacking wrong inside the magazine, which is critical for .350 Legend since it has a larger diameter than 5.56. Proper follower design ensures rounds feed at the correct angle into the chamber and prevents jams.
Can I load all 20 rounds without binding?
This magazine is designed to handle a full 20-round load. The stainless steel body and internal geometry are engineered to accommodate the .350 Legend's dimensions without binding or excessive spring tension that would make loading difficult.
How durable is the stainless steel with the black finish?
Stainless steel naturally resists corrosion, and the black finish provides additional protection and durability. This combination handles field use, extended storage, and harsh weather conditions well, making it a solid choice for hunting or range use over the long term.





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