SIG Sauer just released a video featuring the U.S. Army’s Next Generation Squad Weapons (NGSW) Program. In this video, SIG Sauer President/CEO Ron Cohen talks about the challenges in developing new hybrid ammo, along with a new NGSW Rifle and lightweight belt-fed machine gun (NGSW-AR). These new military guns will employ 6.8×51 hybrid ammunition that combines a brass case with a steel alloy base. This allows significantly higher pressures and velocities, compared to conventional ammo.

“The Army’s Next Generation Squad Weapons program is the most audacious effort in decades. It is the ability to participate in writing history and whatever happens now will dictate the next twenty, thirty, forty years”, said Cohen. This program is a result of the Army’s push for a transformational change in small arms to achieve greater lethality and capability.

The SIG Sauer NGSW system features new 6.8×51mm hybrid ammunition — a lightweight cartridge designed to handle signficantly higher pressures for increased velocity and terminal performance. With this high-velocity 6.8mm round, SIG’s new Lightweight Belt-Fed Machine Gun (NGSW-AR) doubles the effective range of the current M249 while being 40% lighter in weight. SIG Sauer even claims reduced felt recoil.

The SIG Sauer NGSW-R rifle offers advantages over current U.S. military rifles. The new SIG rifle is built on the MCX platform with the added firepower of the 6.8×51 round. Both the NGSW-AR and NGSW-R feature familiar AR-style ambidextrous ergonomics for easy transition from the legacy weapons to the SIG NGSW system. The weapons will also employ SIG Sauer “Next Generation” Suppressors.

SIG Sauer is hoping to win a big military contract with its NGSW weapons. The company stated that it “has committed virtually every part of the company to develop the NGSW weapons, engineering resources, manufacturing resources to develop the most advanced system possible.” SIG Sauer CEO Ron Cohen adds that: “We are the only company that makes the ammunition and the weapons so we were able to harness the engineers on the weapons side with the engineers on the ammunition side. SIG has the engineering resources, manufacturing resources, asset base and commitment to do this.”

The U.S. Military has a new machine gun and a new rifle in a new caliber. SIG Sauer has confirmed the final delivery of the Next Generation Squad Weapons (NGSW) systems to the U.S. Army, consisting of new 6.8x51mm Hybrid ammunition, the NGSW-AR lightweight belt-fed machine gun, the SIG NGSW-R rifle, and SIG suppressors. Ron Cohen, SIG Sauer President/CEO stated that work with U.S. soldiers has “led to rapid advancements over the current weapons systems and resulted in our delivery of the most innovative Next Generation Squad Weapons system to the U.S. Army.”

The new systems will shoot 6.8×51 Hybrid ammunition — a lightweight cartridge designed to handle higher pressures resulting in increased velocity and terminal performance. In civilian form, SIG Sauer calls this cartridge the 277 SIG FURY. The 277 SIG Fury and the military 6.8x51mm cartridges feature a conventional brass upper case body with a steel alloy bottom, case-head section. The hybrid design allows the ammo to run at significantly higher pressures than conventional ammunition. SIG Sauer states that “despite its revolutionary design, [this] hybrid ammunition can be manufactured on a widespread basis immediately.”

The SIG Sauer 6.8mm hybrid ammunition is designed for increased penetration at greater distances. Cohen continued, “using patent-pending technology the SIG Sauer Ammunition Division has engineered a completely new cartridge resulting in a more compact round, with increased velocity and accuracy, while delivering a substantial reduction in the weight of the ammunition.”

This video shows gun features and includes firing sequences with thermal cameras (1:50 time).

The new 6.8x51mm Hybrid ammo gives the new guns significant advantages: “The SIG Sauer Lightweight Belt-Fed Machine Gun (NGSW-AR) doubles the effective range and is 40% lighter than the current M249 while maintaining the preferred belt-fed operation, with reduced felt recoil to increase accuracy. The SIG SAUER Rifle (NGSW-R) is built on the foundation of the battle tested MCX platform with the added firepower of the 6.8×51 round; both the NGSW-AR and NGSW-R feature familiar AR-style ambidextrous ergonomics designed for a seamless transition from the legacy weapons to the SIG NGSW system.”

SIG SAUER Lightweight Machine Gun (NGSW-AR)
The SIG Sauer NGSW-AR is a light-weight (under 15-lb.), medium-caliber machine gun chambered for 6.8x51mm Hybrid ammunition. SIG Sauer designed the NGSW-AR to be 40% lighter than current systems, and dramatically reduce felt recoil while maintaining traditional belt-fed operation to increase downrange capability. This 6.8mm machine gun features ambidextrous AR-style ergonomics, quick detach magazines, increased M1913 rail space for optics, folding buttstock, and quick-detach suppressor. SIG Sauer claim this NGSW-AR “vastly improves upon the operation and function of the legacy M249.”

SIG SAUER Rifle (NGSW-R):
The NGSW-R lightweight rifle (aka MCX-Spear) is derived from existing SIG military rifles with the added firepower of the 6.8mm round. Features include a fully collapsible and folding stock, rear and side charging handle, free-floating reinforced M-LOK™ handguard, fully ambidextrous controls, and quick-detach suppressor.

277 SIG FURY (6.8x51mm) from SIG Sauer
The 6.8x51mm cartridge will be offered by SIG Sauer in a civilian version called the 277 SIG FURY. This boasts a SAAMI maximum average pressure of 80,000 psi, driving a 135-grain bullet to 3,000+ fps. That 80K PSI pressure is WAY higher than almost all other cartridge types. To achieve these high pressures, the 277 FURY uses a hybrid case with a brass body and harder alloy metal case head. This design allows the cartridge to run very high pressures. Dan Horner of SIG Sauer told us: “When the handloaders get hold of this brass, it will be a game-changer for sure”. We envision this cartridge could be necked down to 6.5 mm and it would dramatically out-perform the 6.5 Creedmoor. And yes the official name of the cartridge is all caps “277 SIG FURY”.