so my good friend suggested I use a bicycle intertube to cover the foregrip on my moss500. The grip is smoother, light is more responsive and it's less abrasive overall. Just wanted to share this.
I used to do this back before hogue came out with the handall grips. Take the section of tube and use a 9mm casing open end first on it and you can cut out little holes in a pattern and make your own gripping surface as well.