There aren’t any lies in this video. The guys clearly show what they did with the weapon. No shenanigans, unlike the Osprey scuba video. However, the omission made is that a standard AR-15 would do just as well during this test, as you can see in this video, which I made recently. Essentially, the Adams Arms rifle was laid ejection port down in some sand, shaken around a bit, and fired. The sand on top wouldn’t have much of an effect.
If the Adams guys want to market their system to serious buyers, they need to a) stop flagging the cameraman, as in the ice video, and b) focus on the real strong point of an op-rod conversion, which is the suppressed, SBR, full auto, high round count market. From what I’ve seen, it’s a well designed kit. They just aren’t marketing it properly, in my opinion.