The XM7, previously designated 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.

XM7（前稱：XM5）是SIG MCX Spear突擊步槍的美國陸軍衍生型，發射.277 Fury （ 英语 ：.277 Fury ） （6.8×51毫米）口徑子彈 [1] [8] 。 它是由 西格&紹爾 （SIG Sauer）於2022年為了參與“ 下一代班用武器計劃 （ 英语 ： Next Generation Squad Weapon Program ） …

Civilian version of the U.S. Army’s new XM7 rifle; Available in 7.62x51 and coming soon in 277 SIG FURY; Non-reciprocating side and rear charging handle for maximum flexibility in shooting position; Fully ambidextrous controls including bolt catch and bolt release

2024年12月16日 · While launched in 2019, the desire to give troops a newer weapon for combat had emerged during the War in Afghanistan, as it was found the 5.56 x 45 mm NATO rounds used by both guns couldn’t penetrate body armor or barriers from longer distances.

2024年6月15日 · XM7 （前称： XM5）是 SIG MCX Spear突击步枪 的 美国陆军 衍生型，发射.277 Fury （英语：.277 Fury） （6.8×51毫米）口径子弹 [1][8]。 它是由 西格&绍尔 （SIG Sauer）于2022年为了参与“ 下一代班用武器计划 （英语：Next Generation Squad Weapon Program） ”（Next Generation Squad Weapon Program，NGSW）而研发，目的是取代现役的 M4卡宾枪。 XM7具备一条加强的自由浮动 M-LOK 护木 以供用户安装各种配件。 2019年1 …

2025年3月17日 · The XM7 was developed under the Next Generation Squad Weapon (NGSW) Program to replace the 5.56 x 45 mm NATO round used by the M4 and the M249 Squad Automatic Weapon (SAW). Sig Sauer won a ten-year contract to produce the XM7 rifle and the XM250 light machine gun .

2023年3月1日 · The Sig Sauer MCX Spear is a multi-caliber platform that can swap between .277 Fury, 6.5 Creedmoor, and 7.62 NATO via a simple barrel change at the user level.

2024年12月5日 · The XM7 assault rifle, previously known as the XM5 is the United States Army variant of the SIG MCX Spear, a 6.8×51mm (.277 in), gas-operated, magazine-fed, assault rifle designed by firearms manufacturer SIG Sauer for the Next Generation Squad Weapon Program in 2022 to replace the U.S. army M4 carbine.

2024年12月20日 · The XM7 fires a much newer 6.8 x 51mm NATO round, able to fire through body armor from farther distances. This new round is called the Common Cartridge which can operate with an effective range of 600 meters, roughly twice that of the 5.56.

2025年1月16日 · Designed to replace the iconic M4 carbine, the XM7 is chambered in the new 6.8mm cartridge, a step up from the M4’s 5.56mm NATO round. The 6.8mm offers superior range, stopping power, and accuracy, making it a force multiplier on the battlefield. What truly sets the XM7 apart is its cutting-edge fire control system.