Glock G21 .45 ACP Threaded Barrel 578x28

$204.67 Out of stock
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Factory Glock threaded barrel for G21 Gen3 and Gen4 models. 578x28 right-hand threads with steel protector cap included.

Fits: Glock 21

1

Glock G21 Threaded Barrel

This is an authentic Glock factory threaded barrel designed for the G21 platform. It provides the foundation for suppressor-ready shooting with your full-size .45 ACP pistol.

Specifications

  • Caliber: .45 ACP
  • Thread Pattern: 578x28 (right-hand)
  • Compatibility: Glock 21 Gen3 and Gen4
  • Finish: Black steel
  • Includes: Steel thread protector cap

Key Features

  • Factory Glock engineering and quality
  • Metric thread pattern standard for .45 ACP suppressors
  • Drop-in replacement for standard G21 barrels
  • Durable steel construction
  • Protective cap prevents thread damage during storage

Installation

This barrel is a straightforward replacement component. Field stripping and barrel replacement on the G21 requires no special tools—simply follow standard Glock takedown procedures. The barrel will function with standard G21 recoil springs and components.

Attributes

Model: Glock 21
Sights: None