A one trick pony - VISM AR15 Lower Receiver Vice Block

This thing does one thing well; it holds the lower and the buffer tube while you torque the castle nut...that's all. Otherwise, it has no further advantage over a mag well vise block. its a pain in the A** to set up and holds the receiver at an odd angle that doesn't line up with the buffer tube clamp. Overall, it's nearly a complete waste of time. Would not recommend.