Sig Sauer MCX-SURG Suppressed Upper — 5.56 NATO, 11.5″

$4,583.99

Out of stock

Built for precision, sound reduction, and rapid deployment in constrained environments. The MCX-SURG upgrade kit converts a Mil‑Spec M4 lower into a suppressed MCX configuration purpose-built for durability under duress. Ruggedized components, a direct‑thread suppressor, and removable cage provide modularity and serviceability for the no‑nonsense operator.

Key Specifications

  • Chambering: .223 REM/5.56 NATO
  • Barrel Length: 11.5″
  • Barrel Type: Cold Hammer Forged
  • Suppressor Material: Inconel
  • Packaged Weight: 1.49lbs
  • Color: Flat Dark Earth
  • Product Type: Suppressed Upper
  • Action: Semi-Auto
  • Included Accessories: Lightweight LowPro Handguard; SD Handguard with heatshield; M4 Lower Receiver Adaptor Kit
  • Notable Features: Direct-thread suppressor; removable titanium cage; folding stock with adapter kit

Mission Brief: The MCX-SURG integrates sound mitigation, robust materials, and modular handguard options to convert a standard M4 lower into a mission-capable suppressed platform. Use it to reduce signature, maintain high rates of fire with a heat-shielded handguard, and retain straightforward serviceability when operational tempo demands reliability.

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