Description
This is the factory-original magazine that came with your Sig P320 or P250 Compact pistol, now available as a replacement or backup. Built with durable steel construction and finished in black, it holds 10 rounds of .40 S&W or .357 SIG ammunition.
The magazine features a high-tensile steel spring and polymer follower for smooth, dependable feeding in any shooting situation. An anti-friction coating helps protect the magazine body from wear and corrosion, while the removable baseplate makes cleaning and maintenance straightforward. You'll also find drilled witness holes along the side for quick round-count confirmation at a glance.
This compact 10-rounder is specifically sized for the P320 Compact and P250 Compact grip modules, so it will fit flush with your pistol when fully loaded. It won't work in full-size or subcompact models, so verify your platform before ordering. The magazine measures 9.55 inches in length and works perfectly for range training, everyday carry practice, or duty use.
Key Specifications
- Manufacturer: Sig Sauer
- Model: P320/P250 Compact
- Caliber: .40 S&W / .357 SIG
- Capacity: 10 Rounds
- Length: 9.55 inches
- Material: Steel with anti-friction coating
- Follower: Polymer
- Spring: High-tensile steel
- Finish: Black
- Baseplate: Removable polymer with impact resistance
- Witness Holes: Yes
- Manufacturer Part Number: MAG-MOD-C-43-10
- UPC: 798681505111
What’s Included
- 1x Sig Sauer P320/P250 Compact 10-round magazine
Frequently Asked Questions
Will this magazine work in my P320 full-size pistol?
No, this magazine is sized specifically for Compact models only. Full-size P320 and P250 pistols require different magazines. Using a compact magazine in a full-size grip will result in improper fit. Always verify your exact platform before purchasing.
Can I use this .40 S&W magazine in a .357 SIG P320?
Yes, this magazine works with both .40 S&W and .357 SIG cartridges interchangeably. The external dimensions are identical for both calibers, so one magazine type handles both rounds.
Are these factory original Sig Sauer magazines?
Yes, these are genuine OEM Sig Sauer magazines manufactured to factory specifications. They're the same type that ship with new Sig P320 and P250 Compact pistols.
Can I use P250 Compact magazines in a P320 Compact?
Yes, P250 and P320 magazines are fully interchangeable within the same caliber and frame size. Both platforms use identical magazine designs for their respective models.
How do the witness holes work?
The drilled holes along the magazine side let you see and count the rounds loaded without removing the magazine from your pistol. This is useful for quick ammunition checks before range sessions or practice drills.
Is the baseplate removable for cleaning?
Yes, the baseplate pops off easily without tools, making it simple to empty, inspect, and clean the inside of the magazine tube and spring.





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