my computer wouldnt let me insert a link for some reason. But i can give you instructions on how to get the it online. Its pretty simple:
1.
www.cabelas.com
2. look at the tool bar on left under "online store"
3. click on "hunting/optics"
4. scroll down just a little untill you see the title "shooting accessories"
5. then click on "mini 14/30 - 10/22 Acc."
6. scroll down to the second row from the bottom and click on "Ruger 10/22 Accessories"
7. lastly, scroll down second from the top and click on "Ruger 10/22 Slipover Flash Hider"
sorry for the trouble. and thanks for the help