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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 assault rifle [1] designed by SIG Sauer for the Next Generation Squad Weapon program in 2022 to replace the M4 carbine.
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 the M4 carbine and M249 light machine gun) and 7.62×51mm NATO. [8] [9] [10]
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 SIG MCX Raptor is a short-barreled rifle variant intended to serve as a carbine, featuring an 8-inch (200 mm) barrel and a Picatinny rail tail interface for attaching either a compact buttstock or a folding PCB (pistol contour brace). It is available in .277 SIG FURY, 6.5 Creedmoor and 7.62×51mm NATO. [12]
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 ...
The rifle was originally designed by SIG USA, the subsidiary of SIG Sauer based in New Hampshire. [1] In 2016, SIG recalled some of the rifles that had the first-generation bolt carrier group. [6] It has been used by various SWAT teams and militaries, including the Ukrainian Armed Forces during the Russian Invasion of Ukraine.
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]
NGSW-R (Next Generation Squad Weapon - Rifle) (6.8 Common Cartridge) -- Sig Sauer MCX Spear rifle and cartridge selected and ordered by US Army as the XM7 rifle and 6.8 Common Cartridge. MRGG-A (Mid-Range Gas Gun - Assaulter) (6.5mm Creedmoor) Mk 17 Mod 1 (FN SCAR-H) (6.5mm Creedmoor) LMT MARS-H 6.5 DMR (6.5mm Creedmoor)