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

MDT NV Bridge 3
MDT NV Bridge 3

New: MDT One-Piece Night Vision Bridge

MDT’s One-Piece NV Bridge, a 13-inch, 20-MOA rail for select MDT chassis, keeps clip-on night optics aligned with the riflescope.

TriStar Arms Turns 30 and Still Believes a Great Shotgun Shouldn’t Cost a Fortune

TriStar Arms turns 30 as the family-run Kansas City importer announces the Viper G3, its latest semi-automatic shotgun.

New Apex Bag Rider 2.0 Gives Ruger Precision Rifle Shooters Steadier Elevation Control

The Catalyst Arms Apex Bag Rider 2.0 replaces bag-squeeze elevation control with a wider, reshaped polymer ramp for Gen 1-3 Ruger Precision Rifles.

Elliott, Simonton Win Fall Selection Crowns as USA Shooting Names National Skeet Team

Christian Elliott and Samantha Simonton win open skeet titles at 2026 Fall Selection Match as USA Shooting names the national team for Doha, Lima and Acapulco.

Bethel Shooting Team Gives Up a Saturday for Metal Madness Founder

Bethel University’s shooting team spent a Saturday clearing demolition debris from Grand Rivers Shooting Range while Metal Madness founder Ed White recovered from a heart attack.

Two Programs Join MAC As Rifle Season Opens Sept. 19

Indiana Tech and Hillsdale College join the Mid-Atlantic Rifle Conference for 2026-27, pushing the field to 10 programs chasing a championship decided Feb. 27-28.

Interests



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