Glock 20 Gen5 MOS

Blake Zimmerman   Sep 30, 2025

Why it's great:

A favorite in the 10mm world, the Glock 20 offers 15+1 rounds of 10mm in a reliable, polymer-framed package. The Gen5 MOS model is optics-ready and includes Glock’s latest grip texture, ambi controls, and a flared magwell.

Specs

  • Barrel Length: 4.61"
  • Capacity: 15+1
  • Weight: 30.69 oz (unloaded)
  • Frame: Polymer
  • Optics-Ready: Yes (MOS)

Pros:

  • High capacity
  • Rugged and reliable
  • Excellent aftermarket support

Cons:

  • Large grip may not suit all hands
  • Basic trigger (can be upgraded)

Cast Bullet Use:

Glock barrels have polygonal rifling, which is not ideal for traditional uncoated cast bullets due to potential leading. If using hard cast rounds that are not powder-coated, an aftermarket barrel with standard rifling is strongly recommended.

Best For:

Hikers who want maximum firepower and the rugged simplicity of the Glock platform.

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