The ar-15/m16 upper and lower receiver magazine well vise block set securely clamps all flat top and carry handle ar-15/m16 upper and lower receiver components.Helps to prevent damage or movement during repair, assembly and cleaning.Three piece set of heavy duty blocks for ar-15 /m16 upper and lower receiver.Made in the usa.Type: Vise BlockBlade Type: NylonBlade Length: AR-15Handle Description: AR-Style RiflesWeight: AR-15/M-16Sharpener Type: 3