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SIG MCX Spear (XM7 / M7): The Army's First New Service Rifle in a Generation

admin · 2026-03-16T23:04:02.996Z

The Army hasn't fielded a new service rifle cartridge since McNamara's guys were arguing about whether the M16 would ever work in Vietnam. That's the context here — this isn't a product refresh, it's a generational shift in how the Army thinks about infantry lethality. The concern wasn't hypothetical — it was focused specifically on Russian and potentially Chinese troops equipped with modern ceramic plate systems. This is the part that gets glossed over in a lot of the M7 coverage. The NGSW...

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SIG MCX Spear (XM7 / M7): The Army's First New Service Rifle in a Generation

The M7 rifle — previously designated XM7 and originally XM5 — is the U.S. Army's adopted variant of the SIG MCX-SPEAR, chambered in 6.8×51mm Common Cartridge (commercially sold as .277 Fury). Designed by SIG Sauer in response to the Army's Next Gener

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