SIG SAUER is proud to introduce the MCX-SURG (Suppressed Upper Receiver Group) Upgrade Kit. Designed
to meet the highly-specialized needs of USSOCOM, the MCX-SURG Kit was developed to deliver extreme
performance for special operations units while maintaining high-levels of accuracy and durability.
The MCX-SURG Upgrade Kit was specifically engineered as a drop-in upgrade for a standard M4A1 lower,
converting any standard Mil-Spec AR rifle into a next-generation MCX. Utilizing SIG SAUER’S advanced
suppressor design the MCX-SURG has been tested under Special Operations harshest, most demanding
conditions, and has been proven to exceed even the most extreme durability, accuracy and sound
reduction standards.
*LIMITED RUN* The unique heat shield design of the MCX-SURG Upgrade Kit, is meant to prevent burns while still allowing
the operator to maintain high rates of fire
The MCX-SURG includes a complete MCX upper receiver group, direct thread Inconel suppressor,
removable titanium cage, SD handguard, low profile handguard, folding stock with adapter kit, and
chambered in 5.56 NATO.
- Model : Sig Sauer MCX Upper
- Barrel : 11.5″
- Caliber : 5.56×45 NATO
- Finish : Flat Dark Earth
- Muzzle : Inconel Suppressor
- Stock : Folding Stock Adapter Kit
- Handguard : Removable Titanium Cage – SD Handguard