hello all, quick ?

i just bought a ruger 10/22 carbine. I replaced the wood stock with a dragunov fiberforce stock. I love it, but it think that when i do get to shoot it, the hard plastic stock on the new stock will be hard on my arm. are there any suggestions to help me soften up the stock butt. i need something that is, obviously, soft, durable and will stand up to the weather (rain, snow, heat, etc). any suggestions would be greatly appreciated. I just need a simple addition or modification to fix this problem, but the stock is just to hard on the arm (or im sure it will be). i will post a pic of it 2marrow when my dad takes one with the digital camera

thanks
geter