5 Hole Keymod High Temp Polymer Rail Scales. Our HTP™ Scales are made from the same patented textures and hardware as our machined G10 line of rail scales, but in a more affordable heat-stabilized nylon. Add texture, grip, and heat protection to your KeyMod or M-LOK rails. Available in 4 textures, 4 colors, in 3 or 4 pack quantities. Only 0.010" thicker than the G10 line and 1/3 of the cost. Learn More.