The SureFire SOCOM6-MINI4 in black is a Fast-Attach suppressor optimized for the 6mm ARC (SureFire part no. SOCOM6-MINI4-BK). SureFire built it entirely from U.S. mill-certified Inconel superalloy, using machined and 3D-printed components joined by CNC laser welding. The body is 5.8 inches long and 1.5 inches in diameter, so it stays compact on a short-barreled 6mm ARC rifle. A redesigned muzzle cuts frontal flash and adds durability against impacts. For an AR chambered in 6mm ARC, this is the SureFire made for the cartridge.

Key Specifications

• Caliber is 6mm ARC, the cartridge SureFire optimized this suppressor around.
• Overall length is 5.8 inches, compact for a 6mm ARC suppressor.
• Length added to the weapon is 3.3 inches, and SureFire notes it varies with the adapter used.
• Diameter is 1.5 inches, slim enough to stay out of the way on a handguard.
• Weight is 16 ounces, light for an all-Inconel suppressor.
• Construction is U.S. mill-certified Inconel superalloy, chosen to resist the heat and erosion of sustained fire.
• SureFire states 60 percent lower back pressure than conventional suppressor designs, which sends less gas toward the shooter.
• It mounts with SureFire Fast-Attach, a tool-free system that is backward compatible with SOCOM Fast-Attach muzzle devices.
• It is optimized for SF3P, FH556RC and WARCOMP open-tine flash hiders, a useful guide when choosing a muzzle device.
• The coating is Cerakote in black, a durable finish for the body.

Frequently Asked Questions

Is this the 6mm ARC version of the MINI4? Yes. The SOCOM6-MINI4 is optimized for 6mm ARC weapons platforms, with a 5.8-inch body that adds 3.3 inches to the rifle.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Which muzzle devices does it work with? It mounts on SureFire Fast-Attach adapters and is backward compatible with SOCOM Fast-Attach muzzle devices. SureFire optimizes it for the SF3P, FH556RC and WARCOMP open-tine flash hiders.

Buy the SureFire SOCOM6-MINI4 Fast-Attach 6mm ARC Suppressor, Black

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through SureFire‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer. It is built for one cartridge and does that job without extra bulk.