Out of stock
SKU: EU390509
UPC: 741566905735
MPN: 390509
The EAA Corp Magazine MC1911S is a 9-round, single-stack magazine built for 1911 pistols chambered in 10mm Auto. It serves shooters running EAA's Girsan MC1911 line and other compatible single-stack 1911 frames who want a factory-correct feeding source rather than a guess at fitment. With nine rounds of 10mm on tap, it gives one more round than the typical 8-round .45 ACP stick in the same envelope. This is a straightforward replacement and spare-mag option for range work, competition, and field carry where dependable feeding under the higher pressure of 10mm matters more than anything else.
Single-stack 1911 magazines live and die by their feed lips, and a 10mm mag has to manage a longer, hotter cartridge than the .45 ACP these frames were originally cut for. The MC1911S carries the EAA Corp part number 390509 and uses a steel body sized to fit standard Government-length 1911 mag wells. The 9-round count comes from the slightly shorter 10mm case stacking efficiently in a tube that would hold 8 rounds of .45. Buyers should confirm their pistol is cut for 10mm before ordering, since 1911 magazines are caliber-specific at the feed lip and follower. For shooters who run multiple calibers across the 1911 platform, EAA also catalogs this same body in .45 ACP and 9mm configurations.
Keep a few of these in the bag if you shoot 10mm with any regularity. Magazines are wear items, and rotating fresh springs through your rotation keeps feeding consistent across a long range day or a match. This one drops into compatible single-stack EAA and Girsan 1911s without modification. If you're stocking spares, browse our full selection of pistol and rifle magazines, including other EAA Corp 1911 mags in .45 ACP and 9mm, plus 10mm options like the Springfield XD-M Elite 10mm magazine for double-stack shooters.
It's built for single-stack 1911 platforms chambered in 10mm Auto, including EAA's Girsan MC1911 line and compatible Government-length 1911 frames cut for 10mm. Confirm your pistol is chambered in 10mm before ordering, since 1911 magazines are caliber-specific at the feed lips and follower.
The MC1911S holds 9 rounds of 10mm Auto. The 10mm case stacks slightly shorter than .45 ACP, which is why this single-stack tube carries one more round than the typical 8-round .45 ACP 1911 magazine in the same length.
No. This magazine is configured specifically for 10mm Auto. EAA Corp catalogs the same magazine body in .45 ACP and 9mm versions with different feed lips and followers, so choose the one that matches your pistol's chambering.
Yes. This is an EAA Corp magazine carrying part number 390509, intended as factory-correct replacement or spare for compatible 1911 pistols. It ships with the steel body and follower designed for the 10mm cartridge.
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