Quick Tip: BRN-4/HK-416 Barrel Swap

Join Caleb from Brownells in this detailed tutorial where he walks you through the process of swapping barrels on a BRN-4 upper receiver, the HK416 clone that's become a favorite among enthusiasts. In this video, Caleb takes a 14.5-inch nitride barrel and replaces it with a 13.7-inch chrome-lined barrel, explaining the reasons behind the swap and highlighting the benefits of chrome lining for your firearm.