The Unity Tactical VFG is the perfect size Vertical Fore Grip for M-LOK rails. Its 360 degree sloping sides provide increased grip ability from all angles. It excels when used as a hand stop, but can also be employed as a straight vertical grip. M-LOK Compatible The unique shape creates a seamless grip flow from rail to VFG Polymer DIMENSIONS: 1.50"(L) x 1.0"(W) x 2.25"(H)