Here's an auction if you're interested in buying a real Jungle Viper Sniper Rifle.
There's some good pictures too. This one shows a good shot of the sites. There's the rear butterfly site just to the left of the magazine well and a front sight post mounted a little futhur down the barrel. There's probably some sort of mounting asssembly for a scope on there as well.

Good luck.

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The United States will conquer Terrorism with the help of God and a few Marines.

Some people, when trying to avoid thinking about those things that cause them pain, turn to drink, or perhaps food, or drugs... I turn not to any of those... I collect action figures, turning my mind to the hunt, so that I might find a mote of peace... Over the years, I've found that alcoholism is much more socially acceptable by far.