Description
Looking to double your M1 Carbine's firepower? The CAR-A2 gives you a full 30 rounds of .30 Carbine in a classic curved magazine body that fits right into the receiver like it belongs there.
Build Quality and Materials
ProMag constructed the CAR-A2 with heat-treated steel throughout the body and follower, then added a heat-treated chrome-silicon wire spring that's designed to last. The blued finish matches vintage rifles and offers corrosion resistance for storage and field use. Every part is made in the USA and backed by ProMag's lifetime warranty, so if something fails, they'll replace it.
What to Expect from the 30-Rounder
The 30-round capacity is a real advantage if you're running extended range sessions or just want to minimize reloading. That said, M1 Carbine magazines are finicky by nature — it's a quirk of the platform that's been around since the 1940s. Some carbines feed these flawlessly. Others might need you to break in the stiff spring by running a few partial loads or full cycles before they settle in. Down-loading to 25-28 rounds is a common technique if you hit any hiccups. Make sure your rifle has the right mag catch hardware if you're running a 30-round — some earlier carbines need modification.
A Practical Spare
Whether you're collecting spare mags, feeding a carbine you shoot regularly, or just want high capacity when you take it to the range, the CAR-A2 delivers straightforward performance at a straightforward price. The blued steel looks right at home on a vintage rifle, and the curved banana profile is unmistakably authentic to the original design.
Key Specifications
- Manufacturer Part Number: CAR-A2
- UPC: 708279007330
- Caliber: .30 Carbine
- Capacity: 30 Rounds
- Material: Heat-Treated Steel
- Finish: Blued
- Spring Material: Heat-Treated Chrome-Silicon Wire
- Follower Material: Steel-Stamped Polymer
- Fits: U.S. M1 Carbine and most post-war reproductions
- Manufacturer: ProMag
- Country of Origin: Made in USA
- Warranty: Lifetime Warranty
What’s Included
- ProMag CAR-A2 30-round magazine
Frequently Asked Questions
Will the CAR-A2 fit my M1 Carbine without modification?
It depends on your rifle. The 30-round magazine fits original GI carbines and most post-war reproductions out of the box. Some earlier or modified carbines may need an M2-style mag catch to secure it properly. Check your mag catch hardware before ordering — if you're not sure what you have, ask about your specific rifle model.
How does this compare to original GI magazines?
The CAR-A2 is a budget-friendly aftermarket option that uses quality heat-treated steel and chrome-silicon springs. Original GI magazines are preferred by many collectors because of proven durability and tighter tolerances, but they're much harder to find and cost significantly more. This magazine gives you 30-round capacity at a fraction of the price, with the lifetime warranty backing you up if it fails.
What if it doesn't feed well out of the box?
New magazines sometimes have stiff springs that need breaking in. Try loading 20-25 rounds instead of a full 30, or run a few empty cycles to loosen things up. If feed issues persist after break-in, ProMag's lifetime warranty covers it — contact them for a replacement. Down-loading by a few rounds is also a widely used technique for any 30-round M1 Carbine magazine.
Does this magazine come with any documentation?
The magazine ships as-is with no printed manual, but it's straightforward to load and use just like any other detachable box magazine. If you need break-in tips or have warranty questions, ProMag's support is available to help.






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