Does the K-Spec BCG 💩 where it eats?
This video investigates whether the downward venting design of the K-Spec BCG increases fouling in the AR-15 lower receiver and magazines, particularly when used with a suppressor. The testing protocol involved comparing fouling levels after firing suppressed and unsuppressed with both the K-Spec BCG and a standard milspec BCG. The results suggest that while suppressors significantly increase fouling, the K-Spec's downward venting does not appear to contribute meaningfully to increased fouling in the magazine or fire control group compared to a standard BCG.












