What is the strongest airsoft sniper rifle?

The M700P Sniper Rifle FPS-720 Competition Professional Airsoft Gun has a muzzle velocity of 720+ feet per second (fps). Changing the ammo to heavyweight bbs will still produce 600fps.

An even stronger Airsoft rifle, but not specifically a sniper, is the Crosman Quest 1000X Breakbarrel Air Rifle. This scoped, 0.177 caliber long-distance shooter is rated at 1000fps.

As Airsoft grows in popularity, there are more reports of the weapons being misused. From around the map in 2012: a 12-year-old in Minnesota had his Airsoft guns taken by law enforcement and was charged with discharging a firearm in city limits. A 12-year-old in Canada also found trouble with law enforcement after firing an Airsoft gun at a car. In May, a Pennsylvania man threatened a police officer with an Airsoft gun. Luckily the sound of the gun made the officer realize it wasn’t the real thing; otherwise he very likely would have returned fire.