Aug 28, 2020 · The skullcrusher has an integrated bayonet mount for use with a PVS14 JArm or PVS7 bayonet. The only adjustment is the forward/backward movement of the bayonet mount. There is no way to flip your night vision out of the way. You have to simply undock them from the skullcrusher. Since the majority of the skullcrusher is a giant plastic clamp ...