GLOCK 31 MAGAZINE - 357 SIG - 10 ROUND CAPACITY - 15 ROUND BODY - BLACK
Glock
$40.69
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Glock
GLOCK 31 MAGAZINE - 357 SIG - 10 ROUND CAPACITY - 15 ROUND BODY - BLACK
The Glock 31 OEM Magazine delivers factory-grade reliability for your .357 SIG pistol, featuring a 15-round body blocked to California-legal 10-round capacity — giving you the authentic Glock fit and finish your firearm deserves.
- California-compliant 10-round capacity in a standard 15-round magazine body
- Genuine Glock OEM construction — not an aftermarket substitute
- Hardened steel insert encased in impact-resistant high-tech polymer shell
- Drop-proof design resists deformation even under heavy field use
- High-quality spring and follower ensure reliable feeding shot after shot
- Black finish with Glock's signature cardboard-style packaging included
Who This Is For
This magazine is the ideal choice for California-based Glock 31 owners who want a factory OEM replacement or backup magazine without sacrificing quality. Whether you're a range shooter looking for dependable feeding in .357 SIG or a responsible home-defense gun owner who demands nothing but genuine Glock parts, this blocked magazine lets you stay compliant while trusting the same engineering found in standard Glock magazines worldwide.
Specifications
| Brand | Glock |
|---|---|
| Model | MF31015 |
| Fits | Glock 31 |
| Caliber | .357 SIG |
| Magazine Body Capacity | 15 Rounds |
| Blocked Capacity (CA Legal) | 10 Rounds |
| Finish | Black |
| Construction | Hardened Steel Insert / High-Tech Polymer |
| Packaging | Cardboard Style |
| Compliance | California-Legal (CA Blocked) |
Frequently Asked Questions
Will this magazine work in other Glock models besides the Glock 31?
This magazine is specifically designed and sized for the Glock 31, which chambers .357 SIG. While some Glock double-stack magazines share similar dimensions across the mid-size frame family, Glock recommends using the correct model-specific magazine for optimal feeding reliability and fit. Always verify compatibility with your specific Glock model before purchasing.
What does "CA Blocked" mean, and can the block be removed?
"CA Blocked" means the magazine has been permanently or semi-permanently restricted to hold no more than 10 rounds to comply with California's magazine capacity laws. Attempting to remove or alter the block to restore the magazine to its original 15-round capacity may be illegal under California law. This magazine is sold as a compliant 10-round unit for California residents.
Is this a genuine Glock OEM magazine or an aftermarket product?
Yes — this is an authentic, factory-original Glock OEM magazine (Part No. MF31015), not a third-party or aftermarket reproduction. It features the same hardened steel insert, high-tech polymer body, and precision spring and follower that come standard in every Glock magazine, ensuring the same reliability and fit you'd expect straight from the factory.
- Caliber:
- 357 SIG
- Capacity:
- 10/15 Round
- Color:
- Black
- Follower Color:
- Black
- Type:
- Pistol Magazine
- CA Compliant:
- Yes
- Material:
- Polymer
- Platform:
- Glock 31
- Model:
- 31
