GrovTec Thread Protector 1/2-28 x .625 – AR-15 Barrel Protection

The GrovTec Thread Protector shields threaded muzzle ends from damage, debris, and corrosion when a muzzle device isn't installed. Designed for barrels with 1/2-28 TPI threading—the standard pitch for .223/5.56 AR-15 platforms—this protector prevents thread damage during transport, storage, or cleaning. It's an essential component for anyone who swaps muzzle devices or wants to preserve factory threading for future use.

Constructed from durable steel with a black oxide finish, this thread protector installs hand-tight with no tools required. The .625-inch outer diameter matches standard AR-15 barrel profiles for a flush, low-profile fit. Simply thread it on clockwise until snug; remove counterclockwise when installing a brake, flash hider, or suppressor mount.

• Part Type: Thread Protector
• Thread Pitch: 1/2-28 TPI
• Outer Diameter: .625 inches
• Compatible Firearms: AR-15, .223/5.56 rifles with 1/2-28 threading
• Material: Steel
• Finish: Black Oxide
• Installation: Hand-tight, no tools required