Product Description The SureFire SFMB5561228 is a precision-machined muzzle brake that also functions as a suppressor mounting adapter for SureFire SOCOM Series 5.56 mm Fast-Attach suppressors. Designed for M4/M16 platforms and variants with 1/2-28 muzzle threads, it reduces recoil impulse and muzzle rise to help the rifle track straighter for faster shot-to-shot recovery. SureFire&&';;s patented Impulse Diffusion design helps minimize side blast and rear-directed concussion. Built from US mill-certified, heat-treated stainless steel bar stock with high-precision single-point cut threads, it features a black Ionbond DLC coating for exceptional durability in harsh conditions and easier cleaning after hard use. A rear labyrinth seal helps minimize carbon buildup in the indexing system to support easier suppressor removal after extended firing. Product Highlights Dual-purpose design: muzzle brake plus mounting adapter for SureFire SOCOM Series 5.56 mm Fast-Attach suppressors Reduces recoil and muzzle rise for improved control and faster follow-up shots Patented Impulse Diffusion design helps reduce side blast and rear-directed concussion Heat-treated stainless steel construction with precision single-point cut threads for optimal thread interface Black Ionbond DLC coating provides strong corrosion/abrasion resistance and easier maintenance Specs Brand: SureFire Manufacturer Part Number: SFMB5561228 UPC: 084871319256 Type: Muzzle Brake / Suppressor Adapter Caliber: 5.56x45mm NATO Thread Pattern: 1/2"-28 TPI Material: Heat-treated stainless steel Finish/Coating: Black Ionbond DLC Compatibility: M4/M16 weapons and variants with 1/2-28 muzzle threads; SureFire SOCOM Series 5.56 mm Fast-Attach suppressors Overall Length: 2.7 in (as listed by a retailer) Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the products manufacturer.