What AR-15 barrel lengths are there?

AR-15 barrels come in a wide variety of lengths to accommodate different shooting preferences and purposes. Some of the most common AR-15 barrel lengths are as follows:

1. Carbine Length: A carbine-length barrel is typically 16 inches long. This is the most common length for AR-15 rifles and offers a great balance between maneuverability and ballistic performance.
2. Mid-Length: A mid-length barrel is slightly longer than the carbine length barrels, usually around 18 inches. This provides a longer sight radius, increased muzzle velocity, and potentially improved accuracy compared to a carbine-length barrel.
3. Rifle Length: A rifle-length barrel is the longest option measuring around 20 inches or more. This length is commonly preferred for precision shooting or long-distance applications. This barrel length offers enhanced muzzle velocity, longer sight radius, and greater accuracy due to increased barrel harmonics.
4. Pistol Length: AR-15 pistols have a shorter barrel than the other 3 listed lengths, typically from 7 to 10.5 inches. The compact lengths make them highly maneuverable and more suitable for home defense or close-quarters situations. It is important to note that AR-15 pistols are under different legal classifications and regulations compared to rifles.

These are just a few examples of the most common AR-15 barrel lengths. It is also worth noting that custom barrel lengths can also be available, allowing you to further tailor your firearm to specific needs or preferences. While selecting a barrel length, factors to consider include intended use, desired range, maneuverability, and legal restrictions in your area.