Four piece set of short G10 XOS style rail scale m-lok section cover and m-lok hardware. This is a 3D printed product made with high strength and impact resistant Siraya Tech Build resin. Second picture is of the rail scale mounted for reference. Interested in 3D printed accessories? Check out all of our available products on our official website @ GoonDynamics.com For free shipping on orders through our website over $24.99 use code ‘FREESHIP25’ or code ‘15OFF50’ for 15% off orders over $49.99!