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Game Changer: The US Army Picks Sig Sauer’s XM5 Rifle and XM250 Rifle

Sig Sauer
US Army Picks Sig Sauer's XM5 Rifle and XM250 Rifle. Image Credit: Sig Sauer.

The Army Chooses Sig Sauer for the New Rifle, SAW For Close Combat Troops – The US Army has ended a 65-year history with the M16/M4 rifle and the 5.56mm rifle cartridge with the selection of Sig Sauer’s XM5 rifle and XM250 Automatic Rifle as the next weapons for troops beginning in late 2023. 

The New Hampshire-based Sig Sauer weapons manufacturer has already secured the contract to supply the Army with the M17 and M18 handguns and was awarded a 10-year, $20.4 million dollar contract that will not only replace the venerable M4 rifle but also the ammunition.

The XM5 and XM250 will use the new 6.8mm ammunition that Army officials say will increase accuracy, range, and lethality for its combat troops. 

The plan is for the Army to buy 107,000 XM5 rifles and 13,000 XM250 automatic weapons as well as the 6.8mm ammunition which the contract will be worth a total of more than $4 billion dollars. 

The Road to Sig Sauer

The Army began search for the Next Generation Squad Weapon began back in 2017 and has now culminated in the Army once again choosing a design by Sig Sauer as it beat out the designs by General Dynamics and Textron Systems.

The new XM5 and XM250 will at least initially replace the M4 in infantry, scout, combat engineer, and special operations units. While the M4 will continue to be used by the rest of the Army. The weapons will also be available for the other armed services to adopt as well as eventually be available for foreign military sales to the US allies. 

“Both weapons provide significant capability improvements in accuracy, range, and overall lethality. They are lightweight, fire more lethal ammunition, mitigate recoil, provide improved barrel performance, and include integrated muzzle sound and flash reduction,” the Army said in a released statement

6.8mm Ammunition is the Key to the New Weapons: 

While the Sig Sauer weapons passed rigorous testing, the real change, in essence, is the ammunition.

The 6.8mm ammunition will travel supersonically longer than the current 5.56mm ammunition which will provide the troops with a more accurate and lethal round as well as a more controllable round than the current 7.62mm in the automatic weapons. The 6.8mm round is optimal for close combat between 500 and 600 meters according to Army officials. 

The ammunition is what will hold up the deployment of the new weapons until the 4th quarter of 2023. Until the Army has enough ammunition stocks built up, they can’t field the new rifles to the troops. The ammunition uses a hybrid-metallic casing consisting of brass and steel that reduces its overall weight. 

While the Army will have enough ammunition to field the first few weapons in late 2023, it has already begun work to build a new facility at the Lake City Army Ammunition Plant in Missouri that should start producing rounds in 2025 or 2026.

Sig Sauer XM5 And XM250 To Field New Optics

Both of the Army’s new weapons will feature the XM157 Fire Control optic, which is being made under a contract that was awarded to Vortex Optics subsidiary Sheltered Wings in January. That contract will be worth $2.7 billion over the next 10 years, as they produce 250,000 optical units according to Army officials. 

“The NGSW-FC system is a ruggedized fire control that increases accuracy and lethality for the Close Combat Force. It integrates a number of advanced technologies, including a variable magnification optic, backup etched reticle, laser rangefinder, ballistic calculator, atmospheric sensor suite, compass, Intra-Soldier Wireless, visible and infrared aiming lasers, and a digital display overlay,” the Army’s Cross-Functional Team-Soldier Lethality wrote in a press release.

Steve Balestrieri is a 1945 National Security Columnist. He has served as a US Army Special Forces NCO and Warrant Officer before injuries forced his early separation. In addition to writing for 19fortyfive.com, he has covered the NFL for PatsFans.com for more than 10 years and his work was regularly featured in the Millbury-Sutton Chronicle and Grafton News newspapers in Massachusetts.

Written By

Steve Balestrieri is a 1945 National Security Columnist. He has served as a US Special Forces NCO and Warrant Officer before injuries forced his early separation. In addition to writing for 1945, he covers the NFL for PatsFans.com and his work was regularly featured in the Millbury-Sutton Chronicle and Grafton News newspapers in Massachusetts.

3 Comments

3 Comments

  1. Everett Cheseldine

    April 21, 2022 at 7:19 pm

    They should have went with the Grendel round. Much better than the 6.8mm

    • Robin

      April 25, 2022 at 5:06 am

      Cost might be a factor in all of this

  2. Andrew

    April 22, 2022 at 1:42 am

    The US military is making the same mistake they made back in 1954 when they adapted the full power 7.62mm round instead of the intermediate 7mm British round. The 6.8mm x 51 is a full power round by Sig Sauer that is designed to be on par with the 7.62mm x 51 NATO. The recoil on both are extremely harsh on an assault rifle platform. This is the exact reason why 5.56mm NATO replaced the 7.62mm NATO. Now they are making a complete circle back to the 7.62 mm, but in a different caliber. Why they did not opt to go with more sensible intermediate round like the 6.8mm SPC Remington or 6.5mm Grendel or the like is beyond me. Now we will see more waste of taxpayers money trying to fix their mistakes with another “new round” and weapon because the recoil this full power round is barely manageable.

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