Which barrel length is best for an AR-15? We perform the ultimate tests.
Garand Thumb, a recognized expert in civilian tactical firearm testing, presents a data-driven analysis of AR-15 barrel lengths. The video details empirical testing using a LabRadar to measure muzzle velocity across six different barrel lengths (10.3" to 16") with 5.56 NATO ammunition. It also covers bullet drop at 300 yards and provides application-specific recommendations for each barrel length, emphasizing the trade-offs between velocity, portability, and ballistic performance.













