SureFire SOCOM 3-Prong Flash Hider Suppressor Adapter 1/2x28 5.56 - SF3P-556-1/2-28

SureFire® SOCOM 3-Prong Flash Hider & Suppressor Adapter – 5.56mm NATO – 1/2x28 TPI – DLC Finish – SF3P-556-1/2-28

The SureFire® SOCOM 3-Prong Flash Hider & Suppressor Adapter (SF3P-556-1/2-28) is a premium, combat-proven muzzle-end enhancement accessory engineered explicitly to deliver flawless signatures reduction and an unyielding structural mounting index for suppressors. While standard A2 birdcage flash hiders or multi-port hybrid compensators struggle with severe structural tine ringing, uneven gas venting, and rapid erosion under hard-use thermal cycles—frequently resulting in blinding night-blindness and poor silencer concentricity—this authentic factory masterpiece completely eliminates those operational vulnerabilities. This 5.56mm platform asset (084871319119) serves as the industry-standard mounting hub required for professional duty use, tactical carbine configurations, and elite cloning military rifle projects.

Precision CNC-machined from high-strength, premium U.S. mill-certified heat-treated stainless steel bar stock, the body of the SF3P features a proprietary, friction-reducing and highly protective Black Ionbond DLC (Diamond-Like Carbon) coating. This specialized armor preserves the precision-machined dimensions of the adapter walls while shielding the underlying steel matrix from abrasive gas erosion, harsh copper solvents, and coastal salt humidity. The defining technical edge of this muzzle device is its patent-pending **three-prong tine architecture**. This highly optimized framework provides a staggering **99% visual flash reduction** when compared to a bare muzzle, protecting the operator's night vision and completely masking downrange signatures in low-light operational environments. Completed with high-precision, single-point cut barrel threads and a rear-facing labyrinth seal ring system, it ensures clean, direct alignment for your silencer chassis.

The true functional highlight of this combat asset is its role as a dedicated primary anchor. Every single SF3P is stringently inspected for absolute concentricity to serve as a rock-solid fast-attach adapter for **SureFire SOCOM Series 5.56mm sound suppressors** (including the legendary SOCOM556-RC2 and RC3 lines). The integrated **labyrinth seals** effectively minimize carbon buildup inside the suppressor’s attachment collar, ensuring clean, administrative detachment strings even after high-volume firing drills on the line. Hand-finished and engineered to endure the rigors of modern deployment, this premium muzzle component elevates your rifle's signature control to the peak tier of mechanical predictability.

Includes: (1) SureFire SOCOM 3-Prong 5.56mm Flash Hider / Suppressor Adapter (1/2x28 TPI), (1) Custom Timing Shim Installation Pack, (1) Tube of High-Strength Rocksett Thread Locking Compound, and Official SureFire Muzzle Installation Tool.

*Suppressor Architecture Compatibility Note: This muzzle adapter is custom-dimensioned EXCLUSIVELY to interface with standard SureFire SOCOM Series Fast-Attach® sound suppressors (including RC, RC2, RC3, SB, and MINI models). It is NOT compatible with legacy SureFire Fast-Attach silencer units (such as the older FA556-212 or legacy 212 lines) due to entirely different internal alignment geometry and attachment collars.

Key Features

• Elite 99% Flash Suppression: Precision patent-pending three-prong tine geometry completely shears expanding combustion gases, slashing visible muzzle flash signature by more than 99%.
• Hardened Stainless Bar Stock: Formed from elite, U.S. mill-certified heat-treated stainless steel to shrug off aggressive gas wash, extreme thermal expansion, and rugged field impacts.
• Concentric Suppressor Alignment: Engineered with multiple precision-ground bearing surfaces to guide your silencer perfectly straight, completely neutralizing the risk of dangerous baffle strikes.
• Labyrinth Seal Carbon Barrier: Dual rear-facing seal rings contain combustion gases, keeping the suppressor mounting collar clean and preventing the silencer from freezing or binding to the adapter.
• Diamond-Like Carbon Protection: Premium Ionbond DLC coating delivers exceptional surface hardness, extreme slickness, and virtual immunity to corrosive powder solvents and salt spray.
• Turnkey Timing Shim Pack: Arrives pre-packaged with an assorted color-coded structural timing shim kit and high-performance Rocksett glue to ensure a flawless, square torque lockup without a crush washer.

Product Specifications

• Brand: SureFire® (Fountain Valley, CA)
• Product Line: SOCOM Fast-Attach® Accessory Series
• Model Name: SOCOM 3-Prong Flash Hider / Suppressor Adapter
• SKU / MPN: SF3P-556-1/2-28 (Alternative Part Identifier: SF3P-556-1-2-28)
• Firearm Platform Accommodation: AR-15, M4, M16, and Spec-Adherent 5.56mm Weapon Formats
• Muzzle Thread Pitch Spec: 1/2"x28 TPI Right Hand (RH)
• Caliber / Gauge Accommodation: 5.56x45mm NATO / .223 Remington & Smaller
• Chassis Core Construction: U.S. Mill-Certified Heat-Treated Stainless Steel
• Finish Treatment: Advanced Wear-Resistant Ionbond Black DLC Coating
• Suppressor Lock Interface: SureFire SOCOM Fast-Attach® System Mount
• Gas Management Core: Integrated Dual Labyrinth Seal Rings
• Total Component Length: 2.60 Inches (66.0 mm)
• Country of Origin: Proudly Designed, Engineered, and Manufactured in the USA
• Product Net Component Weight: ~3.90 oz (110.5 g)
• UPC: 084871319119