Difference Between AR-15 A1, A2, A3, A4: A Comprehensive Guide
When it comes to the AR-15 rifle, there are several variants that have been developed over the years, each with its own unique features and purposes. In this article, we will delve into the differences between the AR-15 A1, A2, A3, and A4 models, providing you with a detailed understanding of what sets each apart.
AR-15 A1
The AR-15 A1 is one of the earliest versions of the rifle, characterized by its distinctive features. Here are some key points to consider:
| Feature | Description |
|---|---|
| Barrel Length | 18.5 inches |
| Weight | 7.5 pounds |
| Handguard | Fixed, aluminum |
| Stock | Fixed, collapsible |
| Firearm Operation | Semi-automatic |
AR-15 A2
The AR-15 A2 is an upgraded version of the A1, with several improvements. Let’s take a look at the differences:
| Feature | Description |
|---|---|
| Barrel Length | 20 inches |
| Weight | 7.7 pounds |
| Handguard | Fixed, aluminum |
| Stock | Fixed, collapsible |
| Firearm Operation | Semi-automatic |
| Additional Features | Flash suppressor, bayonet lug, and forward assist |
AR-15 A3
The AR-15 A3 is another variant that builds upon the A2, with some notable changes. Here’s what you need to know:
| Feature | Description |
|---|---|
| Barrel Length | 20 inches |
| Weight | 7.7 pounds |
| Handguard | Fixed, aluminum |
| Stock | Fixed, collapsible |
| Firearm Operation | Semi-automatic |
| Additional Features | Flash suppressor, bayonet lug, forward assist, and a forward handgrip |
AR-15 A4
The AR-15 A4 is the latest variant in the series, offering several improvements over its predecessors. Here are the key differences:
| Feature | Description |
|---|---|
| Barrel Length | 20 inches |
| Weight | 7.7 pounds |
| Handguard | Fixed, aluminum |
| Stock |
