Sig Sauer® MCX thread protector 5.56 mm, 1/2×28

A small part with a big impact. The Taper Cap for 5.56 caliber barrels with a 1/2×28 thread from Sig Sauer is a reliable finishing touch to the entire setup – protecting the thread, looking great and ensuring maximum compatibility with the sealed tapered fit.

Protects what matters

Barrel threads are not exactly cheap. And they are certainly not resistant to impacts, dirt or weather vagaries. The Taper Cap from Sig Sauer acts like their bulletproof bodyguard. Precise machining and durable surface treatment ensure that the thread won't budge – literally.

Precision like from a catalog

Thanks to careful manufacturing and the 1/2×28 TPI (Threads Per Inch) thread, this cap fits perfectly. It is optimized for barrels of SIG MCX, SIG M400 and other current Sig Sauer 5.56 NATO weapons, so there is no play or unwanted vibrations. The result? Peace of mind and readiness for quick mounting of additional accessories.

Ideal for storage and use

Whether you're using a silencer, compensator or leaving the barrel "bare," the Taper Cap has its place. It's suitable for training setups, transportation, as well as long-term weapon storage. It's a small but practical detail that you'll notice when you need it – and it's not there.

Benefits you need to know about:

• protects the barrel thread from damage, dust and corrosion
• compatible with Sig Sauer barrels with a 1/2×28 TPI thread
• precise workmanship ensures accurate fit
• durable surface finish for long-lasting use
• suitable for weapon storage and transport
• easy and quick installation without tools
• subtle but aesthetically matched accessory
• perfect backup component for every shooter