Description
This is a solid aftermarket option for any M1A or M14 owner looking to stock up on spare magazines. Check-Mate manufactures these to USGI specifications using the same expertise they've developed over 30+ years as a preferred supplier to the U.S. military. You get durable American-made steel through-hardened for strength, a corrosion-resistant phosphate finish that holds up in rough conditions, and construction that mirrors what works in professional use.
Check-Mate M1A Magazine Features
The anti-tilt follower paired with heavy-duty steel springs ensures smooth feeding performance every time. Precision-machined feed lips deliver a tight, wobble-free fit that keeps rounds feeding consistently without any rattle in the mag well. The removable steel floorplate makes field stripping and maintenance straightforward when you need to clean or inspect the internals. All the design work here is born from decades of military contract experience, not guesswork.
M1A Magazine Capacity and Compatibility
The 20-round capacity is the sweet spot for most shooters. It balances practical magazine size with enough rounds to minimize reloading during range sessions or training. This magazine works with both .308 Winchester and 7.62x51mm NATO, so it fits either way. Compatible with all M1A and M14 platform rifles. The 20-round body gives you good handling and reload efficiency if you ever transition between magazine capacities.
Why Choose Check-Mate Over Other Options
You're getting factory-like performance without the factory price tag. These mags come backed by Check-Mate's lifetime warranty because they stand behind what they build. The fit and finish are clean, springs are tight, and the magazines ship ready to use. For range work, hunting, or keeping spares on hand, this is the kind of mag that simply does its job without drama.
Key Specifications
- UPC: 850020492039
- Manufacturer Part Number: M1A-20
- Manufacturer: Check-Mate Industries
- Caliber: .308 Winchester / 7.62x51mm NATO
- Capacity: 20 Rounds
- Material: American Milled Steel
- Finish: Phosphate (Black)
- Magazine Body Type: Steel
- Follower Type: USGI Anti-Tilt
- Spring Type: High-Tensile Steel
- Base Plate: Removable Steel
- Rifle Compatibility: Springfield M1A / M14
- Specifications: Manufactured to USGI Standards
- Country of Origin: USA
- Warranty: Lifetime
What’s Included
- One Check-Mate M1A/M14 20-round magazine
Frequently Asked Questions
Will this Check-Mate magazine work with my M14 rifle or just M1A?
It works with both. The M1A is the civilian version of the military M14, and they use the same magazine. Any M1A magazine is compatible with M14 rifles and vice versa. This magazine will feed reliably in either platform.
Can I use this magazine with 7.62 NATO ammunition or just .308 Winchester?
Both work fine. The magazine is compatible with both .308 Winchester and 7.62x51mm NATO. These two cartridges are closely related and use the same magazine dimensions. Most shooters use these interchangeably without any issues.
How does this Check-Mate mag compare to factory Springfield magazines?
Check-Mate is an OEM manufacturer who supplies the military, so they build to the same USGI specs as factory mags. The main difference is price. You get the same reliability and construction but without paying the factory premium. The anti-tilt follower and steel spring ensure consistent feeding just like any quality military-spec magazine.
What comes with the magazine when it arrives?
Just the magazine itself. It ships fully assembled and ready to load. The removable floorplate allows you to take it apart for cleaning if needed, but everything is ready to use right out of the box.





Reviews
There are no reviews yet.