What Are the Common AR Barrel Lengths?
If you’re new to the AR rifle platform, you may be wondering which barrel length is right for your needs. Whether you want the classic M4 carbine or a long-barreled 308 for hunting, there are a few different barrel lengths available. Here are a few standard barrel lengths, along with their respective strengths and common applications, to help you narrow down the right option for your needs. 14.5 Inches The classic M4 carbine has a 14.5-inch barrel, which is under the minimum requirement of 16 inches to be classified as a rifle. Because of this, you will usually see a muzzle device pinned and welded to bring the full length of the barrel and device up to 16 inches. This is typically referred to as carbine length, and carbines are shorter, lighter versions of rifles. They are one of the most popular AR platforms as they are easy to shoot and maneuver, making them great all-around rifles. 16 Inches Next comes the 16-inch barrel. These are ideal for 9MM carbine rifle barrels. PC...