Description
If you live in a state with magazine capacity restrictions or just want to keep a low-profile mag for range days, this ProMag 10-rounder gives you a practical solution. The magazine features a blued, heat-treated steel body paired with a heat-treated chrome-silicon wire spring and steel-stamped follower. It's designed to fit mil-spec M1 Carbines and most civilian reproductions.
ProMag CAR 01 Construction Details
The magazine body comes welded along the center back for a stiff, solid feel that holds shape during regular use. All internal components are heat-treated for durability, and the blued finish resists corrosion better than bare steel. ProMag backs every magazine with a lifetime warranty against manufacturer defects, so if something goes wrong, you're covered for a replacement.
Break-In Considerations
Since this is a new production magazine, the spring will be fairly stiff right out of the box. Spend a little time working the magazine by hand at home before you head to the range, and it should loosen up as you use it. Also worth knowing: many shooters find that loading just under full capacity (say, 8 or 9 rounds instead of the full 10) can improve feeding behavior in some rifles.
Right for Restricted States
This 10-round mag serves a real purpose if you're in a state that limits magazine capacity. Since quality 10-round options are limited in the aftermarket, having a dependable backup magazine or two makes sense for your rotation.
Key Specifications
- UPC: 708279001260
- Manufacturer: ProMag
- Part Number: CAR 01
- Caliber: .30 Carbine
- Capacity: 10 rounds
- Body Material: Heat-treated steel
- Spring Material: Heat-treated chrome-silicon wire
- Follower Material: Heat-treated steel
- Finish: Blued
- Length: 3.1 inches
- Compatibility: US M1 Carbine, original GI carbines, most post-war reproductions
- Country of Origin: United States
- Warranty: Lifetime manufacturer warranty
What’s Included
- One ProMag M1 Carbine 10-round magazine
Frequently Asked Questions
Will this ProMag 10-round magazine fit my M1 Carbine?
Yes, it's designed to fit all mil-spec M1 Carbines and most civilian reproductions including Inland, Winchester, and other post-war builds. A tight fit out of the box is normal. If you're having trouble seating it, make sure the magazine is fully inserted into the well and try working it with your hand a few times to help the magazine lock in properly.
What should I do if I'm having feeding problems?
New ProMag magazines come with stiff springs, so break it in by loading and unloading it by hand before hitting the range. If feeding issues persist, try loading the magazine with just 8 or 9 rounds instead of the full 10 rounds to see if that improves feeding. Many M1 Carbine owners find downloading helps with magazine reliability across all brands.
Is the ProMag lifetime warranty any good?
Yes, ProMag stands behind their magazines with a lifetime guarantee against manufacturer defects. If you have a problem with the magazine, contact ProMag directly and they'll replace it. Just keep in mind that wear from normal use isn't covered, only defects.
How does this 10-round magazine compare to original military magazines?
Original USGI magazines are generally considered more reliable, but they're scarce and expensive. This ProMag offers an affordable way to get a working 10-round mag, especially for shooters in states with capacity restrictions. The real value is in having backup magazines that are easy to find and reasonably priced.






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