SIG Sauer Announces Commercial Version of U.S. Army NGSW MCX-SPEAR, 277 SIG FURY Ammo

by
posted on January 17, 2022
** 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. **
sig_commercia_ngsw-1.jpg

SIG Sauer has announced the official expansion of the MCX series of rifles with the new MCX-SPEAR chambered in 277 SIG FURY.

The company says: “The MCX-SPEAR was developed with direct input from U.S. warfighters to provide more power, distance and accuracy to replace the current M4 rifle platform. The MCX-SPEAR is now the most innovative and advanced AR platform in the world.”

MCX-SPEAR
SIG Sauer MCX-SPEAR ($7,999, scope not included).


Some background: The MCX-SPEAR is an adaptable multi-caliber rifle (277 SIG FURY, 6.5 mm Creedmoor, 7.62mm  NATO, with barrel change) that boasts rear and side non-reciprocating charging handles, six-position folding stock, ambidextrous fire control, bolt-catch and mag release, two-stage match trigger, two-position adjustable gas piston, a lightened, free-float M-LOK handguard and a full-length Picatinny rail. In addition, it ships with two 20-round magazines.

  • Caliber: 277 SIG FURY / 6.8 x 51
  • Overall length: 34.1 inches
  • Overall height: 7.97 inches
  • Overall width: 2.98 inches
  • Barrel length: 13 inches
  • Barrel twist: 1:7-inch
  • Weight (with magazine): 8.38 pounds


As for the 277 SIG FURY ammunition, it is the commercial variant of the 6.8 x 51 hybrid military round available in the hybrid case technology submitted to the U.S. Army NGSW program. Also available—a 277 SIG FURY FMJ traditional cartridge round.

The final component of this special-edition offering is the SLX Suppressor. The design of the SLX suppressor is optimized to reduce toxic backflow and features SIG's patented QD attach/detach system. The SLX suppressors have a monolithic core construction in Inconel, internal multi-flow path to exhaust gases at a higher rate resulting in lower toxic fume inhalation, sound-reducing baffle design and flash-reducing end cap.

Here is what Ron Cohen, the president and CEO of SIG Sauer had to say about the new MCX-SPEAR:

“This is a rare opportunity for passionate consumers to own a piece of history. This first production run MCX-SPEAR, and all of the revolutionary technology behind its development, is being offered to the commercial market in a configuration that is a near match to our NGSW-R submission. Further, this is the only rifle submission to the program that is designed and engineered in the United States by a company with the manufacturing scale and proven adherence to military-grade quality requirements—which is a tremendous source of pride for everyone at SIG Sauer.”

The MCX-SPEAR, 277 SIG FURY Hybrid Ammunition and SLX Series Suppressors are shipping now. Learn more at SIGSauer.com.


Read more: Bill Hickok’s Carry Gun

Latest

Rem Wethepeop BP 1
Rem Wethepeop BP 1

Remington Don’t Tread on Me, Come and Take It Bulk Buckets Now Shipping

Remington’s Don't Tread on Me and Come and Take It bulk ammo buckets are shipping nationwide, expanding the company’s patriotic America 250 lineup.

First Look: SIG Sauer’s New Hexium Suppressor Line

SIG Sauer’s new Hexium suppressor line brings 3D-printed, low-back-pressure rifle cans to 5.56 mm NATO, 7.62 mm NATO and .300 BLK platforms.

41st Northeastern Satellite Grand American Opens 2027 ATA Target Year

The 41st Northeastern Grand American, first Satellite Grand of the 2027 ATA target year, runs Sept. 8-13 at the NYSATA Homegrounds in Cicero, N.Y.

Back On The Range: Lessons From A Life-Saving Detour

USPSA Board Chairman Dan Click reflects on the health scare that sidelined him in 2025 and the lessons about improvement, community and joy he brought back.

James Fox Wins Ninth Straight Oregon State High Power Championship

Team Berger’s James Fox captured the 2026 NRA Oregon State High Power Championship at Douglas Ridge Rifle Club, his ninth consecutive Oregon state title.

A Tribute To David Tubb

James A. Schmidt II of Arizona Ammunition remembers his longtime friend David Tubb, the champion rifleman and innovator who died July 2.

Interests



Get the best of Shooting Sports USA delivered to your inbox.