Glock 21 Gen 4 Threaded Barrel

Description

Product Overview

The Glock G21 Gen 4 M16x1LH threaded barrel is an OEM replacement barrel for Glock pistols chambered in 45 ACP. It features suppressor-friendly left-hand muzzle threads for easy attachment of compatible accessories while maintaining factory-style barrel performance.

Key Features

• OEM Glock replacement threaded barrel for Glock 21 Gen 4
• 45 ACP chambering for reliable compatibility with .45 ACP ammunition
• M16x1LH left-hand thread pitch for suppressor and muzzle-device use
• 4.49-inch barrel length matched to factory specifications
• 9.84-inch right-hand twist rate for stable projectile performance across common loads
• Includes a thread protector to keep threads protected when not in use

Upgrade your Glock 21 Gen 4 with an OEM threaded barrel built for suppressor-ready versatility.