Thread Protector 1/2 x 28 (9mm & .357SIG Barrel) Knurled Thick Spiral in Violet

This is a Thread Protector for your 1/2×28 threaded barrel, a necessary piece for any Glock owner running a compensator or suppressor mount. Specifically designed for 9mm and .357SIG barrels, this protector keeps your muzzle threads clean from debris, carbon buildup, and physical damage when a muzzle device isn’t installed. The knurled thick spiral design in a standout violet finish offers both serious function and a sharp, personalized look for your build. Miami Shooters Supply delivers this essential Glock part with the fast shipping you expect.

Key Features

• Precision 1/2×28 thread pitch matched to common 9mm and .357SIG barrels.
• Aggressive knurled thick spiral pattern for a positive, non-slip grip even with gloves on.
• Durable anodized violet finish that resists wear, corrosion, and fading.
• Machined from high-strength 6061 aluminum for a perfect balance of lightweight durability.
• Installs and removes by hand without the need for special tools.
• Protects critical barrel threads from impact damage, dirt, and carbon lock.

Built For

This thread protector is built for the Glock owner who values both protection and personalization. It’s ideal for those who switch between a suppressor and a bare muzzle, or for anyone who wants to safeguard their barrel’s threads during transport and storage. The bold violet color is for shooters who appreciate a custom accent on a functional piece without compromising on performance.

Specifications

• Compatibility: Glock and other pistols with 1/2×28 threaded barrels in 9mm & .357SIG.
• Material: 6061-T6 Aluminum with a hard anodized finish.
• Thread Pitch: 1/2″ x 28 TPI (UNEF).
• Finish: Violet.
• Design: Knurled thick spiral for enhanced grip.

FAQ

Will this fit my Glock 19 Gen 5 with a factory threaded barrel?
Yes. If your factory or aftermarket Glock barrel has the standard 1/2×28 thread pitch common for 9mm, this thread protector will fit correctly.

Is the violet color durable or will it wear off?
The color is achieved through a hard anodizing process, which is an integral layer, not a surface coating. It is highly resistant to chipping, scratching, and fading under normal use.