SureFire SFCT5561228 Closed-Tine Flash Hider - Black DLC Stainless Steel, 1/2"-28 Threads, 2.30" OAL for 5.56x45mm NATO AR-15

The SureFire SFCT5561228 closed-tine flash hider is a precision muzzle device built for 5.56x45mm NATO AR-15 rifles running SureFire SOCOM Fast-Attach suppressors. If you're building a quiet rifle setup, this adapter serves double duty: it's engineered to mount your suppressor with repeatable, sub-MOA alignment—no guesswork—and it functions as a capable standalone flash hider when you're running unsuppressed. Unlike typical birdcage designs, SureFire's closed-tine architecture manages flash while providing a rock-solid indexing surface for suppressor mounting.

Built from heat-treated stainless steel with a hard-anodized black DLC finish, the SFCT5561228 shrugs off the corrosion and gas erosion that chew up lesser muzzle devices. The 1/2"-28 thread pattern is standard on most modern 5.56 barrels, and the 2.30" overall length keeps your rifle balanced without excessive muzzle weight. Wrench flats make installation and removal straightforward—no special tools required, just a properly fitted wrench and a little care.

SureFire engineered multiple bearing surfaces into this adapter to guarantee proper suppressor seating every time you mount. That precision matters. A poorly aligned can shifts the suppressor off-bore and kills performance; this device eliminates that risk. Designed and made in the USA, it's the kind of component that works the same way on your tenth install as it did on your first.

Key Features

• Dual-purpose design: effective standalone flash hider and precision suppressor mounting platform
• Heat-treated stainless steel with black DLC coating resists corrosion and erosion
• Multiple bearing surfaces ensure consistent, repeatable suppressor alignment
• CNC-machined for tight tolerances and reliable performance
• Wrench flats for easy installation and removal
• Made in the USA

Specifications

Frequently Asked Questions

What suppressor will this adapter work with?

The SFCT5561228 is designed as a mounting platform for SureFire SOCOM Fast-Attach suppressors. It will not mount other suppressor brands or designs.

Will this fit my AR-15?

This device has 1/2"-28 threads, the standard pitch for most modern 5.56x45mm AR-15 barrels. If your barrel is threaded 1/2"-28, this adapter will fit. If your rifle uses a different thread pitch (like 1/2"-36), you'll need a different device.

Do I need a suppressor to use this, or can I run it alone?

The SFCT5561228 functions as a standalone flash hider when you're not running a suppressor. You don't need to own a SureFire can to use it, though its primary design is as a suppressor mount.

What's included?

You receive the flash hider/adapter itself. Installation tools are not included, though the device features wrench flats for installation with a standard wrench.