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The XM7, previously known as the XM5, is the U.S. Army variant of the SIG MCX Spear, a 6.8×51mm (.277 in), gas-operated, magazine-fed battle rifle [1] designed by SIG Sauer for the Next Generation Squad Weapon program in 2022 to replace the M4 carbine.
The XM250's design is an offshoot of the MG 338 which SIG was also developing for SOCOM. [7] The XM250 light machine gun and XM7 rifle were designed to fire the 6.8×51mm SIG Fury cartridge in response to concerns that improvements in body armor would diminish the effectiveness of common battlefield rounds such as the 5.56×45mm NATO (used in ...
In September 2019, SIG Sauer submitted their designs. [5] The XM7 rifle was designed to fire the 6.8×51mm SIG Fury cartridge in response to concerns that improvements in body armor would diminish the effectiveness of common battlefield rounds such as the 5.56×45mm NATO (used in the M4 and M249) and 7.62×51mm NATO.
The .277 Fury or 6.8×51mm Common Cartridge [4] [5] (designated as the .277 SIG Fury by SAAMI) [1] is a centerfire rimless bottlenecked rifle cartridge announced by SIG Sauer in late 2019. [2] Its hybrid three-piece cartridge case has a steel case head and brass body connected by an aluminum locking washer to support the high chamber pressure ...
The 6.8mm Remington Special Purpose Cartridge (6.8 SPC, 6.8 SPC II or 6.8×43mm) is a rimless bottlenecked intermediate rifle cartridge that was developed by Remington Arms in collaboration with members of the U.S. Army Marksmanship Unit and United States Special Operations Command [6] to possibly replace the 5.56 NATO cartridge in short barreled rifles (SBR) and carbines.
A U.S. Army graphic detailing the competitors for the program as of December 2020. The Next Generation Squad Weapon (NGSW) program is a United States military program created in 2017 by the U.S. Army to replace the 5.56mm M4 carbine, the M249 SAW light machine gun, and the 7.62mm M240 machine gun, with a common system of 6.8mm cartridges and to develop small arms fire-control systems for the ...
This new P220 design should properly be called the SIG Sauer system, which was, in fact, the labeling on one of the first SIG Sauer handguns, a modified SIG Sauer P220 design produced for the Browning Arms company in 1977. On the right side of the slide are the words "SIG Sauer System". This was the first SIG Sauer P220 type sold in the US. [12]
XM250 undergoing evaluation in 2024. In 2017 United States Special Operations Command (SOCOM) issued a solicitation for a .338 Norma Magnum machine gun. [9] This was in response to the need for overmatch when examining the capabilities of the 5.56×45mm and 7.62×51mm rounds compared to 7.62×54mmR. [10]