Unlock the truth about AR-15 barrel length & its impact on bullet velocity. Discover why shorter barrels may not be the hindrance you thought & the surprising benefits they can offer
USA –-(Ammoland.com)- Of all the things you agonize over when choosing an AR-15 rifle, should rifle barrel length be on the list?
How much does it matter whether you choose a 16, 18, or even 20-inch barrel? If you buy the wrong one, will you fail to ever hit another target? Will the bullet even make it out of the fiery end before falling to the ground?
AR-15 Barrel Length
Just to set the stage, we’re talking about service rifles here, not fancy bench rest stuff where competitors have to call their shots for either the right or left eye of a mosquito or other ectoparasite at distances of 800 yards. So, in the context of recreation and defensive use, let’s take a look at the impacts (or possibly lack thereof) of choosing from the most common length barrels. With just one “just for fun” exception, we’ll stick to non-SBR barrels that are available without the need for sending Uncle Spendy extra cash for tax stamps: 16″ barrels, 18 barrels, and 20 barrel inches.
Oh, you might notice a fourth one in the photo. That’s an Aero eight-inch 300 AAC Blackout barrel. We’ll try that in comparison to a 16-inch model too.
By Tom McHale