Sig Sauer Mcx- Surg Suppressed Upper Receiver

The Sig Sauer MCX-SURG Suppressed Upper Receiver Group delivers a turnkey, mission-ready suppressed solution built for exceptional reliability, reduced gas blowback, and unmatched durability. Featuring an 11.5" 5.56 NATO/.223 Rem barrel mated to a direct-thread 7.3" Inconel suppressor with a titanium heat shield, this system is engineered for high-volume fire and extreme conditions. The suppressor’s reduced-blowback design helps maintain smoother cycling and cleaner operation—ideal for professional and defensive applications. This SURG package includes both a lightweight low-profile handguard and an SD handguard with integrated heatshield, giving users flexible configuration options depending on mission needs. Finished in rugged Flat Dark Earth anodizing, the upper is built around Sig’s proven MCX architecture and comes complete with a Standard M4 Lower Adapter Kit, allowing seamless compatibility with traditional AR-15–pattern lowers. Designed as a cohesive suppressed platform, the MCX-SURG offers optimal balance, reduced signature, and enhanced shooter comfort right out of the box. As an Authorized Dealer we ensure fast processing and secure nationwide delivery.