MPX submachine gun

Sig Sauer SIG MCX SBR

Sig Sauer Introduces the Cutting-Edge MCX For 2015

The ultra-modular new MCX from Sig Sauer can quickly transform from a 300 BLK carbine to a 5.56mm SBR to a 7.62x39mm pistol—or any combination in between!

Jan 21, 2015

Sig Sauer has been pushing the envelope in recent years with its MPX submachine gun and P320 striker-fired pistol series, but now, in 2015, the company has gone even further by introducing its MCX series.

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The MCX is an extremely modular platform that allows users to adapt its barrel, handguard, stock and chambering—5.56mm NATO, 300 Blackout or 7.62x39mm. Multiple barrel lengths are available, including 9-, 11.5-, 14.5- and 16-inch units, and shooters can quickly swap those in along with a new handguard, such as a slim KeyMod version or a larger one that will cover a suppressor, by accessing two captive Torx screws. For stocks, shooters can choose between a skeletonized folding stock, a retractable MPX-style stock, an SBX stabilizing brace for pistols, a collapsible M4-style stock or a slim, folding, retractable stock.
All of the MCX’s controls are ambidextrous, including the charging handle, safety selector and magazine catch. The gun was designed for 100-percent suppressor use, so the cam path is made of steel for extra durability. The feed ramps are also made of steel and are removable. The charging handle has steel pins. Finally, the forward assist deflector assembly is removable and replaceable. All of these features enhance the MCX’s extreme reliability. Sig will also offer MCX upper assemblies for use on AR-platform lowers.
For more information, visit sigsauer.com or call 603-610-3000.