Arm Or Ally Thread Protector for Glock Barrels | 1/2×28

Description

Arm Or Ally Thread Protector for Glock Barrels | 1/2×28

Protect the exposed muzzle threads on a compatible threaded 9mm Glock barrel with a precisely machined 1/2×28 thread protector. It provides a clean, finished profile whenever a suppressor, compensator, or other muzzle device is not installed.

Machined from high-quality 416R stainless steel, the protector is stress relieved and heat treated to RC 40-42 for strength, dimensional stability, and resistance to routine wear. Its steel construction provides a durable barrier against impacts, carbon buildup, dirt, and debris that could otherwise damage or contaminate exposed barrel threads.

An integrated O-ring retention system adds tension between the protector and barrel shoulder, helping reduce loosening during unsuppressed firing. The protector can still be removed by hand when changing to a compatible suppressor, compensator, or other muzzle accessory.

The compact profile closely follows the outside diameter of compatible Glock barrels for a streamlined appearance with minimal added muzzle length. Compatibility is determined by the barrel’s thread pitch and muzzle dimensions, so confirm that the barrel uses 1/2×28 threads before installation.

Key Features

• Designed for compatible threaded 9mm Glock barrels
• Standard 1/2×28 thread pitch
• Machined from 416R stainless steel
• Stress relieved and heat treated to RC 40-42
• Integrated O-ring retention system
• Helps reduce loosening during unsuppressed firing
• Protects exposed threads from impacts, carbon, dirt, and debris
• Compact profile adds minimal muzzle length
• Made in the USA

Compatibility

• Compatible threaded 9mm Glock barrels with 1/2×28 muzzle threads
• Compatible Zaffiri Precision Glock barrels using 1/2×28 threads
• May fit other 9mm pistol barrels with compatible 1/2×28 threading and muzzle dimensions
• Not compatible with 13.5×1 LH, 1/2×36, or other thread patterns
• Confirm thread pitch and barrel dimensions before installation

Installation and Care

• Unload the firearm and verify that it is safe before installation
• Clean and inspect the muzzle threads before attaching the protector
• Start the protector by hand to prevent cross-threading
• Do not force installation if binding or unusual resistance is encountered
• Periodically confirm that the protector remains secure during firing
• Inspect the O-ring periodically and replace it if worn or damaged
• Remove the protector and O-ring before installing another muzzle device
• Allow the barrel and protector to cool before removal after extended firing