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US Army’s new machine gun will blast like battle tanks

4 min read

THE US Army’s new weapon will look like a light machine gun, but will put M1 Abrams Main Battle Tank-style blasting power literally at the fingertips of US soldiers.

The new light machine gun will weigh less — and yet shoot farther. It should make US soldiers even more lethal and enhance their speed and mobility while improving their safety in future combat.

The Next Generation Squad Automatic Rifle (NGSAR) may replace about 80,000 SAWs (the M249 squad automatic weapon). The well-known M249 SAWs were already beasts — now the Army’s light machine gun is going to get even more powerful.

Armed with the NGSARs, soldiers will have the confidence of knowing the new weapon can be relied on for stopping power against sophisticated adversaries who arrive to fight in advanced body armour.

The goal is for the weapon’s chamber pressure to achieve similar levels to battle tanks. Recent conflicts have shown that currently issued weapons have not been sufficient when tackling the challenge of forces with defence innovation and access to modern equipment.

Even if a threat is about 600 metres away and seemingly well protected, the new weapon will blast through enhanced body armour.

Distance, accuracy, ergonomics and lethality are all expected to be improved in this new generation of weapon. Infantry will also be able to take advantage of new specially designed, harder hitting, plus lighter weight bullets.

US Marines 2nd Battlation training during an exercise in Australia. Picture: Alix Sweeney
US Marines 2nd Battlation training during an exercise in Australia. Picture: Alix SweeneySource:News Corp Australia


The aim is for the NGSARs to fire bullets at pressure levels similar to those achieved by tanks when they fire. Rounds will smash through advanced adversary body armour even at a distance, allowing soldiers to accurately shoot while maintaining a safe distance from the threat whenever possible.

The Army would like the new weapon chamber pressure to be between 60 and 80 KSI (kilopond per square inch). To put that into context, the Army’s M1 Abrams main battle tank fires at that chamber pressure. Assault rifles tend to be around 45 KSI, so this will definitely be higher.


Currently, M249 SAW weight when empty is 7.8 kilograms — this new weapon will weigh less than 5.4 kilograms. The ammunition weight is also reduced. The aim is for the new ammo to be 20 per cent less than an equal brass case weight.

With the buttstock down, the Army also aims for it to be 35 inches long or less. In terms of dispersion, both the automatic 14 inch, and the semiautomatic 7-inch will have an average mean radius of 400 meters.

The fire control, including day and night optics, will be a maximum of three pounds. The rate of fire will be 60 rounds per minute with 3-round burst for 15 minutes without a barrel change or cook-off.

Textron Systems’ 5.56mm Cased-Telescope LSAT light machine gun.
Textron Systems’ 5.56mm Cased-Telescope LSAT light machine gun.Source:Supplied


The Army is searching for a Goldilocks solution to ammo fit for the current and future conflicts. It has to travel at sufficient speed, but with enough mass to be effective against enemy forces protected by body armour. 7.62mm ammo has been proving to have too much mass and not enough propellant. The problem with 5.56mm has been the opposite — not enough mass to penetrate armour.


Advances like this new light machine gun and new ammo for soldiers are very important. It has already been clear for quite some time that there is a need for a better solution against enemy forces protected with advanced body armour.

SAWs have been effective in combat scenarios with enemies unprotected by armour. However, there are threats from nations with advanced defence programs. If conflict with a country like Russia and China, for example, erupts, then it is vital soldiers are equipped with weapons that can stop adversaries wearing armour.

The enhanced range will also provide an advantage in these types of conflicts, as will enabling US forces to move lighter and travel faster thanks to reduced weight in the new weapons.

The Army recently awarded a contract to Textron Systems for development of a functional prototype NGSAR. The company plans to base it on their Cased-Telescoped weapons and ammunition that has already achieved amazing success in remarkably reducing weight while enhancing lethality.

Textron plans to deliver a magazine-fed system, intermediate caliber and high velocity prototype NGSAR.

The new, powerful weapons could be in the hands of soldiers as soon as 2022.

A US soldier with an M249 SAW.Source:Supplied
From Toktok9ja Media

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