This Thread Protector 1/2 x 28 is a functional and aesthetic upgrade for your Glock barrel. Designed for 9mm and .357SIG barrels with standard 1/2×28 muzzle threads, it screws on to protect those crucial threads from damage, dirt, and impact. More than just a guard, its unique violet finish and machined fluting provide a distinct, personalized look that stands out on the range or in the safe. It’s a simple, essential piece for any Glock owner who uses a threaded barrel and wants to keep it in top condition while adding a splash of color.
Key Features
- Precision machined from durable 4140 steel for long-lasting protection.
- Features deep, straight fluting and a knurled base for a superior grip when hand-tightening or removing.
- Vibrant, high-quality violet finish that resists chipping and wear.
- Standard 1/2×28 thread pitch compatible with most 9mm and .357 SIG threaded barrels.
- Installs in seconds by hand-tightening directly onto your clean barrel threads.
- Maintains a low-profile, straight design that complements your Glock’s factory lines.
Built For
This thread protector is ideal for Glock owners who value both function and personalization. It’s perfect for the shooter who wants to safeguard their barrel investment during transport, storage, or when a muzzle device isn’t mounted. The bold violet color is for those who appreciate a unique accent on their firearm, making it a standout part in your Glock build or collection.
Specifications
- Compatibility: Fits 9mm & .357SIG caliber barrels with 1/2×28 threads.
- Material: 4140 Steel with a durable violet finish.
- Thread Pitch: 1/2 inch x 28 TPI (Threads Per Inch).
- Design: Straight profile with knurled and straight-fluted texture.
- Finish: Eye-catching violet, applied for both appearance and corrosion resistance.
FAQ
Will this fit my Glock 19 Gen 5 threaded barrel?
Yes, if your factory or aftermarket Glock 19 barrel is chambered in 9mm and has the standard 1/2×28 thread pitch, this protector will fit perfectly. Always verify your barrel’s thread specification before ordering.
Can I use this with a suppressor or compensator attached?
No, this thread protector is designed to be used in place of a muzzle device. You must remove it before installing any suppressor, compensator, or muzzle brake onto your Glock barrel threads.


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