Description
This is the factory Sig Sauer compact-frame magazine for the P320 and P250, chambered for 9mm and built to the same specifications and tolerances as the magazine that ships with the pistol. If you carry a P320 Compact and want a spare that feeds and drops free exactly like your original, this is the straightforward answer — no fitment guesswork, no function testing required before you trust it.
The compact frame sits between the full-size and subcompact in Sig’s modular lineup, and that means the magazine is sized accordingly. It seats flush with the compact grip module, so the profile stays clean for carry without the extension of a full-size magazine. The tradeoff is a round count that reflects that shorter tube, which is what makes this particular configuration relevant in jurisdictions that cap capacity at ten — the magazine runs at its design limit rather than being pinned or blocked down from a higher-capacity body.
Because this is a Sig factory magazine, the follower geometry, feed lips, and spring tension are matched to the P320’s feed ramp angle and the P250’s compatible architecture. Aftermarket magazines may feed reliably under normal conditions, but a factory unit carries no ambiguity about whose engineering decisions govern the system. For a duty pistol or a primary carry gun, that consistency matters more than it does on a range-only firearm. Fits the P320 Compact grip module; note that it is not compatible with the X5 grip module fitted with an extended magwell.




