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Glock

Glock 20 Gen4 10mm Auto 15rd OEM Magazine

Factory 15-round 10mm Auto magazine for the Glock 20 Gen4 and Glock 40 MOS

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Quick Specs

Price
$35
Weight
2.4 oz
Brand
Glock
Category
magazine

Features

  • 15-round capacity
  • 10mm Auto
  • Polymer body
  • Glock OEM construction

Capability Boosts

Reliability+1

Recommended For

Home Defense
Duty/Patrol
Outdoor Defense

Compatibility Tags

family: handgunframe: glock-gen3-4frame: glock-fullsizemag-type: glock-10mm

Overview

The Glock 20 Gen4 factory magazine holds 15 rounds of 10mm Auto, making it the highest factory capacity for a production 10mm pistol. The G40 MOS long-slide variant uses the same magazine body. Both pistols see use for outdoor carry where 10mm provides genuine ballistic advantage over 9mm against large animals.

The 10mm magazine body dimensions are identical to the .45 ACP (G21) magazine externally, but the internal geometry is caliber-specific. Do NOT mix 10mm and .45 ACP magazines.

Key Features

  • 15-round capacity in 10mm Auto
  • Highest factory capacity for any production 10mm pistol
  • Compatible with Glock 20 Gen4 and Glock 40 MOS
  • 10mm specific; NOT interchangeable with .45 ACP Glock magazines

Pros

  • +15 rounds of 10mm Auto sets the capacity standard
  • +Works in both G20 and G40 MOS
  • +Glock OEM reliability

Cons

  • Full-size grip required; no compact 10mm Glock variant
  • 10mm ammo cost is higher than 9mm

Detailed Specifications

caliber
10mm Auto
capacity
15 rounds
Material
Polymer body with steel liner
compatible
Glock 20 Gen4, Glock 40 MOS

Compatible Platforms

+85 more

Pairs Well With

Top matches

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