Weapons Ending Explained: Everything You Need to Know About Firearm Terminology

When discussing firearms, the term “weapons ending” refers to the specific suffix or prefix used in a weapon’s model or designation, commonly seen in the syntax of firearm names. Whether you’re a gun enthusiast, a collector, or someone researching weapon terminology, understanding weapons endings helps clarify manufacturing names, historical developments, and functional distinctions. This guide breaks down what weapons ending truly means, its significance in firearm nomenclature, and how noting these endings can enhance your knowledge.


Understanding the Context

What Does “Weapons Ending” Mean?

In firearms nomenclature, a weapons ending is a suffix or formal morpheme appended to a base model or manufacturer name that conveys important information about the weapon’s purpose, design variation, or production lineage. These endings often indicate whether the firearm is a military variant, a civilian model, a specific caliber, or a specialized role variant.

While not a scientific term, weapons ending broadly encapsulates the following naming conventions:

  • Military vs. Civilian Use: Endings like M16A2 or AR-15 distinguish military-approved variants from civilian permissible versions.
  • Caliber or Role Specification: Suffixes like .500 Booker or NIKON 2000 clarify intended ammunition type or special missions.
  • Manufacturer Branding: Prefixes or unique endings tie models to specific producers, such as AK-47 (Kalinin Factory) or Glock 17 (Glock GmbH).

Understanding this naming structure is vital for collectors, law enforcement researchers, and historians interpreting firearm evolution.

Key Insights


Common Types of Weapons Endings

1. Military-Blast Name Endings

Traditional military firearms often use nomenclature ending in -A1, -A2, or -M to denote official service models.

  • Example: M16A2 — A modern, compact variant of the M16 rifle, standardized for U.S. military use.
  • Example: AK-47 — Owned formally as Avtomat Kalashnikova 47, reflecting its inventor Andrey Kalashnikov’s legacy.

These endings signify official adoption, updated ballistics, or specialized features for combat situations.

Final Thoughts

2. Civilian Thermal and Semi-Automatic Endings

Civilian models typically use simpler suffixes, often indicating semi-automatic, target-grade, or custom features.

  • Example: AR-15 — Short for “ArmaLite Rifle 15”—a lighter, civilian-optimized variant of the original AR series.
  • Example: SDX — Short for Standard Defense Xtreme, describing a tactical training model.

Endings like XD, XS, or BMT (from Battlefield Modification Toolkit) classify versions optimized for durability and low-cost manufacturing.

3. High-Caliber or Special-Purpose Endings

Weapons designed for precision or extreme applications often include unique endings denoting performance traits.

  • Example: .500 Booker — A heavy-bore caliber known for supersonic shooting, specialized in long-range applications.
  • Example: .22 LR BMGT — Build-up kit endings denote controlled, low-impact use, while NIKON marks a specific barrel brand collaboration.

Awards in firearms nomenclature emphasize functionality: hunting, competition, or industrial use.


Why Does the Weapons Ending Matter?

Accurate Identification

Endings help distinguish between versions modified for war, sport, or civilian ownership, crucial for legal and historical contexts.

Collector Value

Models with distinct ending suffixes often carry higher resale value due to limited production runs or iconic status—e.g., M16A2 vs. M16A3 variants or custom Glock pistols with Bolt Action endings.