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  • Glock G31 15rd .357 SIG magazine, black polymer body with steel insert
GLOCK UPC 764503310157 MPN MF31015

Glock G31 15rd .357 SIG Magazine – Black

Member pricing
  • Caliber/Gauge .357 Sig
  • Capacity 15
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Details

This OEM Glock magazine (MF31015) is designed for use with the Glock G31 in .357 SIG and holds 15 rounds. It features a hardened steel insert encased in high‑technology polymer to resist deformation and protect the magazine body. The magazine includes a high-quality spring and follower to support reliable feeding throughout its service life.

Key Specifications

  • This magazine holds 15 rounds.
  • Compatible with the Glock G31 pistol.
  • Caliber specified as .357 SIG.
  • Constructed with a hardened steel insert encased in polymer.
  • Finished in black.
  • Manufacturer part number is MF31015.
  • UPC is 764503310157.
  • Overall packaged dimensions approximately 1.35 x 4.15 x 8.45 inches.
  • Country of origin: US.

This Glock OEM magazine is a practical option for shooters seeking a factory-compatible spare or replacement magazine for the G31 platform. Its steel insert and polymer body provide a balance of durability and impact resistance, while the spring and follower are designed to promote consistent feeding. Suitable for range use, training, and maintaining a ready spare, this magazine follows Glock’s original equipment design and specifications.

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Specifications

UPC

764503310157
Manufacturer

Manufacturer Part Number

MF31015
Brand Fit

Glock
Caliber/Gauge

.357 Sig
Capacity

15
Length

8.4500
Model

G31
Model Fit

G31
Package Height

1.25
Package Width

4.0
Product Type

Magazine
Shipping Weight

0.2
State Restriction (CA)

NO DIRECT SHIP TO CALIFORNIA
State Restriction (OR)

NO SALE TO OREGON
State Restriction (RI)

NO DIRECT SHIP TO RHODE ISLAND
State Restriction (WA)

NO DIRECT SHIP TO WASHINGTON

Shipping & Returns

All sales are final; we do not offer refunds or exchanges. Items that arrive damaged or defective are covered under the manufacturer's warranty — contact us within 5 days of delivery and we will help coordinate a claim.

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