The SureFire SOCOM6-MINI4 black suppressor is SureFire’s dedicated 6mm ARC fighting can, built from U.S. mill-certified Inconel superalloy (SureFire part no. SOCOM6-MINI4-BK). SureFire optimized it for 6mm ARC platforms and kept it to a 5.8-inch body that stays light and compact. Machined and 3D-printed components are CNC laser-welded, so it holds up to sustained fire even on short-barreled rifles. The new muzzle design reduces frontal flash, and the low-back-pressure layout keeps gas out of the shooter’s face. For an AR chambered in 6mm ARC, it is the can SureFire built specifically 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 can.
• Length added to the weapon is 3.3 inches, varying with the SureFire adapter.
• 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 can.
• Construction is high-temp Inconel superalloy, built to resist the heat and erosion of sustained fire.
• SureFire states 60 percent lower back pressure than conventional designs, which reduces gas to the shooter.
• It mounts via Fast-Attach, tool-free and backward compatible with SOCOM Fast-Attach muzzle devices.
• It is optimized for SF3P, FH556RC and WARCOMP open-tine flash hiders, a guide for muzzle device choice.
• The coating is black Cerakote, which protects the body from wear.

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.

What sound level does SureFire publish? SureFire lists 139 dB with 6mm ARC ammunition from a 17.25-inch barrel, measured at the shooter’s ear.

Buy the SureFire SOCOM6-MINI4 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, and it ships fast to your Class 3 dealer. A cartridge-specific can is the cleanest way to suppress a 6mm ARC rifle without compromise.