Video: SIG Sauer MCX

by
posted on January 31, 2016
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
The modular SIG Sauer MCX line was designed in the U.S. after the Department of Defense asked for a compact, quiet rifle able to engage targets out to 300 meters. Through SIG's ability to incorporate suppressors as part of design rather than simply mounting them to barrels, SIG has achieved enhanced accuracy and reduced point-of-impact shift. The completely ambidextrous MCX is offered as a pistol, carbine and SBR, accepting a broad array of accessories in order to build a complete system for any scenario or environment. In addition to .300 BLK, the MCX can quickly convert to fire 5.56 NATO/.223 Rem., and soon to be introduced in 7.62x39 mm. American Rifleman's Mark Keefe got a close look at the SIG MCX SBR in .300 BLK at SIG Sauer's Media Day during the 2016 SHOT Show. Watch range footage above for all the details, or learn more about the engineering of this system by watching these SIG videos. For specifications, download the MCX brochure or go to sigsauer.com.





Latest

FP 6.5Peak Launch Fusion Terminalascent Peakalloy 19
FP 6.5Peak Launch Fusion Terminalascent Peakalloy 19

Federal's New 6.5 Creedmoor +Peak: The Peak Alloy Case Goes Mainstream

Federal introduced its high-pressure Peak Alloy case design with the 7 mm Backcountry in 2025. Now, the company is incorporating it into high-pressure 6.5 Creedmoor loads with the +Peak design.

I Carry: Springfield Armory Echelon 4.0FC in a JM Custom Kydex Holster

In our latest "I Carry" video, a Springfield Echelon 4.0FC is outfitted with Aimpoint's new COA enclosed-emitter red-dot optic, and to carry this optic-equipped handgun, we've selected a JM Custom Kydex holster.

The Armed Citizen® June 5, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Multi-Caliber MK24 to Replace SCAR-H For SOCOM

U.S. Special Forces will soon be replacing their 7.62-NATO-chambered SCAR-Hs with a new, barrel-swapping MK24 Mid-Range Gas Gun-Assault (MRGGA) gun capable of running either 7.62 NATO or 6.5 Creedmoor.

Rifle Renaissance 2026: Exploring Rifle Skills Beyond Marksmanship

Being able to shoot in contextual situations, shoot from unusual positions, manipulate the rifle quickly and rapidly adjust one’s position based on distance are all essential skills for a well-trained rifleman. To train these abilities, The Complete Combatant hosted the first annual Rifle Renaissance event in March 2026.

New Guns For 2026: A Full Guide

While it’s claimed the firearms industry is experiencing a slowdown, that hasn’t meant a stall to innovation. It means gunmakers are working harder than ever to earn your business.

Interests



Get the best of American Rifleman delivered to your inbox.