My favorite bcg - Walker Defense Research Nickel Boron Bolt Carrier Group

Out of all my BCGs (Aero Precision, Wilson Combat, Griffin Armament, and a couple cheap mil-spec ones), these Walker Defense Research ones are my favorite. Nickel-Boron is the only way to go for high-quality builds. These are some of the least expensive Nickel-Boron BCGs on the market and the quality seems to exceed all the other NiB BCGs I own. Great for precision builds but also performed flawlessly and stayed surprising clean during extended durations of suppressed high-rate fire. These Walker Defense Research BCGs consistently have less carbon build-up than my other NiB BCGs with all other factors being equal.