The way I think of it if its a good deal scoop it up man they are tips and can be removed. You can get another pair used or some of the eBay knock off ones that look surprisingly good. Im actually going to order the carbon fiber set to see how they turn out. for 200 bucks its worth a try worst case I just put the keep the stock tips on.
http://www.ebay.com/itm/Universal-AK...lZdLKp&vxp=mtr