SIG Sauer Announces MCX VIRTUS

by
posted on July 5, 2017
** 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. **
virtus_lede_2.jpg

Based on feedback from Special Operations unites worldwide, SIG Sauer has enhanced its original MCX adaptive rifle to create the MCX VIRTUS in 5.56 NATO and 300 BLK. With the rifle’s ability to be configured more than 500 ways with options for different barrels, stocks, handguards and colors, SIG is calling it “The Complete Systems Provider.”



"SIG has supplied firearms to meet the unique demands of specialized units for decades," said Ron Cohen, President and CEO of SIG Sauer. "Similar to the P320 pistol, the MCX VIRTUS was created to be the ultimate modular platform, a design that will change the demands of the modern rifle for years to come."

In ancient Rome, "Virtus" stood for virtue, courage, bravery and excellence. The MCX VIRTUS embodies the spirit of the professional users who have depended on and continue to rely on the MCX in the field. The added features and enhancements of the MCX VIRTUS include increasing accuracy, delivering additional modularity and providing a service life of more than 20,000 rounds, all without a single part replacement.

Available in Patrol (shown), Pistol and SBR variants, in Stealth Gray or FDE color, the MCX VIRTUS utilizes the proven SIG Sauer short-stroke piston system and unique internal recoil system that eliminates the M4-style buffer tube. The result is a compact, light-recoiling platform that can be configured for any task.

  


Cold-hammer-forged barrels, available in 9", 11.5" and 16" lengths, feature an advanced interchangeable design and can be exchanged at the operator level. To increase accuracy, the barrels are of a heavier contour profile. Also assisting with accuracy is the new SIG Matchlite Duo trigger, a two-stage unit that provides the shooter with a crisp, clean feel. A new tapered bolt lug design results in smoother cycling and extends the bolt life. Capping off the upgrades are eight (8) new free-floating M-LOK handguards available in standard and suppressor-ready configurations.

To see all the specifications and learn more about the VIRTUS, visit sigsauer.com/virtus.

Latest

World War I-era Berthier M16 carbine
World War I-era Berthier M16 carbine

Taking It Home: War Trophies in American History

From our founding to the more recent past, war-trophy firearms have played a significant role in arming American citizens.

Questions & Answers: Patterning with the Poly Choke

I bought a Remington 1100 LW 20-gauge shotgun for my wife to shoot clay targets (informally) and sometimes hunt with me when I go hunting for waterfowl.

Meprolight Offers Free Suppressor With Optic Purchase

Readers have only until July 31, 2026, to purchase a qualifying Meprolight optic and be eligible to receive a rebate for a free Backdraft Hunter suppressor in a caliber of their choosing.

Gun Locker: Wilson Combat eXperior Elite

Wilson Combat continues its fine tradition of making excellent guns even better with its new eXperior Elite design.

The Sako 90 Grizzly: Modernity Meets Tradition

Hunting remains a largely traditional activity, and some of us just like the feel of a nice wood stock. For those purists among us, Sako has introduced its new-for-2026 Grizzly.

The Armed Citizen® July 13, 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.

Interests



Get the best of American Rifleman delivered to your inbox.