This EA is free but it is based on commercial indicators.
Note that I'm not affiliated to the commercial offer. Also, it's not totally based on the Sniper Forex trading system, as there is no multi-orders with different lot, and no automated stop loss based on the sniper stop v2. Of course you can attach the EA to several charts with different parameters. At least it will give you an idea.The goal of this expert is to provide you a tool that will allow you to test the system without investing all your time the eyes in front of the screen.
The EA will work only until the expiration of the indicators if you have the demo version.
The Sniper Forex website : http://www.sniperforex.com/