Enlisted Expeditionary Warfare Specialist (EXW) Practice Test 2026 - Free EXW Practice Questions and Study Guide

The identification of what constitutes a Major group of a weapon's Table of Allowance (TOA) is essential for understanding the organization and functionality of the components within military firearms. In this context, the term “Major group” refers to the primary assemblies that make up the firearm, which typically include the Bolt Carrier Group, Magazine Group, and Lower Receiver.

The Barrel Group is not considered a Major group in this context as it is generally viewed as a specific component rather than an assembly of several core parts that are prioritized within the TOA categorization. The other groups mentioned—Bolt Carrier Group, Magazine Group, and Lower Receiver—are foundational elements that play critical roles in the operation and functionality of the weapon system. The Bolt Carrier Group handles the cycling of the rounds, the Lower Receiver houses the fire control components, and the Magazine Group pertains to ammunition feeding systems. Thus, while the Barrel Group is important, it does not fit into the classification of Major groups within the TOA.