Glock
Factory flush-fit 10-round .45 ACP double-stack magazine for the Glock 30, 30SF, and 30S.

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The Glock 30 factory magazine holds 10 rounds of .45 ACP in a flush-fit double-stack body, the carry configuration for the G30, G30SF, and G30S. Ten rounds of .45 in a concealable subcompact is class-leading for the caliber; single-stack .45s like the G36 and most 1911-pattern carry guns hold six to eight. The polymer body uses Glock's standard steel-lined OEM construction.
The G30 magazine is double-stack and does not interchange with the single-stack Glock 36, though the larger G21 13-round magazine runs in the G30 frame (with an X-Grip sleeve to close the grip gap). Buy spares in OEM; aftermarket .45 ACP Glock mags have a spottier reliability record than the factory part.
The flush 10-round mag pairs cleanly with the Pearce PG-30 floorplate extension for a full pinky rest without giving up the concealment footprint.
Add the Glock 30 .45 ACP 10rd OEM Magazine to your build and see how it enhances your platform.