With the Beta C-Mag's reputation for reliability and actual combat conditions I can see how that would be a very bad idea. I guess a tactical use for it is for a soldier to attach his/her personal weapon to the mount and use it as a LMG. Reduce logistics and acquisition (FN Minimi family) which cuts through the red tape. But the barrels would have to be changed to heavier increasing the cost of each AR unless it's meant for something along the lines of LWRC's IAR. My 2 cents. Other than that, pretty useless still. Just fun to shoot I guess.