The US Army’s new Service Rifle - The SIG SPEAR / NGSW XM5

Published on May 15, 2022
Duration: 24:28

The SIG SPEAR (XM5/XM7) represents a significant shift for the US Army's service rifle, adopting the powerful 6.8x51mm .277 Fury cartridge. This new round utilizes a hybrid casing to withstand extreme pressures, enabling high velocities from its 13-inch barrel. While offering superior performance over the M4, concerns remain regarding increased weight, reduced ammunition capacity, and logistical impacts.

Quick Summary

The SIG SPEAR (XM5/XM7) is the US Army's new service rifle, chambered in the powerful 6.8x51mm .277 Fury caliber. It features a hybrid casing for high pressures and velocities, a SIG-specific suppressor, and ambidextrous controls, but raises concerns about weight and ammunition capacity.

Chapters

  1. 00:00Introduction & Shooting Montage
  2. 02:02NGSW Program & SIG SPEAR Overview
  3. 04:506.8x51mm Caliber & Hybrid Casing
  4. 06:12Chronograph Testing & Velocity Results
  5. 06:53Suppressor & Muzzle Device Design
  6. 08:09Gas System & Size Comparison
  7. 09:25Barrel Profile & Accuracy
  8. 11:17Dual Charging Handles Explained
  9. 12:47Ambidextrous Controls Review
  10. 15:57Combat Load & Logistics Concerns
  11. 18:34Final Assessment & Verdict

Frequently Asked Questions

What is the new US Army service rifle?

The US Army's new service rifle is the SIG SPEAR, designated as the XM5 (now XM7), adopted under the Next Generation Squad Weapon (NGSW) program to replace the M4 platform.

What caliber does the SIG SPEAR use?

The SIG SPEAR utilizes the new 6.8x51mm caliber, also known as .277 Fury. This round features a hybrid casing designed to handle extremely high pressures for increased velocity.

What are the main advantages of the 6.8x51mm round?

The 6.8x51mm round's high chamber pressure capability allows it to achieve velocities comparable to or exceeding traditional 7.62 NATO rounds, even from the SIG SPEAR's shorter 13-inch barrel.

What are the potential drawbacks of the SIG SPEAR?

Potential drawbacks include increased weight and bulk compared to previous service rifles, and soldiers carrying fewer rounds due to the larger caliber and 20-round magazines, impacting squad logistics.

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