FPM Gunworks Whistling Bunghole 5.56 / .223 Thread Protector 1/2x28 Black DLC

FPM Gunworks Whistling Bunghole 5.56 / .223 Thread Protector 1/2x28 Black DLC

The FPM Gunworks Whistling Bunghole is a compact thread protector built for 5.56 NATO and .223 Remington platforms using a 1/2x28 thread pattern. Made from 17-4 stainless steel and finished in black DLC, it offers a durable, clean-looking option for protecting muzzle threads when a muzzle device or suppressor is not installed.

With its short 0.90 inch overall length, this model is a practical fit for shooters who want a low-profile thread protector that adds durability without unnecessary bulk. It is a strong option for rifle builds, replacements, and general maintenance where thread protection and a refined finish are both important.

Highlights

• FPM Gunworks Whistling Bunghole thread protector
• Fits 5.56 NATO and .223 Remington platforms
• 1/2x28 thread pattern
• Compact 0.90 inch length
• 17-4 stainless steel construction
• Black DLC finish for durability and corrosion resistance
• Low-profile option for protecting exposed muzzle threads

Specifications

• Brand: FPM Gunworks
• Model: Whistling Bunghole
• Manufacturer Part Number: WBH3612X28SSBLKDLC
• UPC: 850083185459
• Item Number: 196383
• Caliber: 5.56 / .223
• Thread Pattern: 1/2x28
• Length: 0.90 in
• Material: 17-4 Stainless Steel
• Finish: Black DLC
• Product Type: Thread Protector