The SureFire SOCOM556-MINI2 Black is a five-inch Fast-Attach suppressor for 5.56mm M4-variant rifles with 14.5-inch and longer barrels (SureFire part no. SOCOM556-MINI2-BK). SureFire built it to deliver performance close to the model that won the USSOCOM suppressor trials, in a more compact package. Internal baffling significantly decreases back pressure, cyclic rate and gas blowback, with virtually undetectable first-round flash and a minimal, consistent point-of-impact shift. It comes with a FirstSpear MOLLE pouch and a cleaning brush. This black version suits a standard M4 build.

Key Specifications

• The caliber is 5.56mm (.223 caliber), the standard for M4-pattern carbines.
• It is optimized for 14.5-inch and longer barrels on M4 variants, the barrel length SureFire built it around.
• Overall length is 5.0 inches, the compact point of the SOCOM 2 series.
• SureFire lists 2.5 inches of length added to the host weapon, though the actual figure depends on the adapter used.
• Diameter is 1.5 inches, the figure to check against handguard clearance.
• Weight is 15 ounces, light for a can built to take full-auto use.
• Construction is high-temperature Inconel alloy and stainless steel, which withstands full-auto use.
• The coating is Ionbond and Cerakote, and this version is Black.
• The mount is Fast-Attach, which attaches and removes without tools and works with SureFire flash hiders, compensators and WARCOMPS.
• SureFire measures 137 dB at the shooter’s ear with M855 from a 14.5-inch barrel, and 140 dB from a 10.3-inch barrel.

Frequently Asked Questions

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 barrel length is the MINI2 made for? SureFire optimizes the SOCOM556-MINI2 for 14.5-inch and longer barrels on 5.56mm M4 variants. SureFire measured 137 dB at the shooter’s ear with M855 from a 14.5-inch barrel.

What comes in the box? SureFire includes a FirstSpear MOLLE pouch and a cleaning brush with the SOCOM556-MINI2.

Buy the SureFire SOCOM556-MINI2 Fast-Attach 5.56mm 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 suppressors lineup and our Lubbock, Texas team will handle the transfer and it ships fast to your Class 3 dealer. The MINI2 trades a little length for handling, so it fits a carbine that needs to stay short.