The BOSS Guillotine Suppressor (brand part no. GU-15060-556-SS-12-VE-BLK) is a dedicated duty-rated suppressor built for 5.56 gas blowback action rifles like the traditional AR-15 and similar platforms. B O S S Suppressors builds the Guillotine with a stainless nitrided core and a vented end cap, threaded 1/2-28, finished in black.

Key Specifications

• Rated for 5.56-class cartridges.
• Built with a stainless nitrided core for duty-rated durability.
• Uses a vented end cap design.
• Threaded 1/2-28 for direct-thread mounting.
• Finished in black.

Frequently Asked Questions

Is this an NFA item? Yes. As a suppressor, it’s a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

What caliber is it rated for? 5.56-class cartridges.

What platforms is it rated for? Gas blowback action rifles such as the traditional AR-15 and similar platforms.

Buy the BOSS Guillotine Suppressor

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer, with an extended federal approval wait before delivery. Order through B O S S Suppressors‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.