if they hit you when they're in the air, ya. but only if the person through the grenade hard. when they explode, it's just messy, and it's a pain in the butt to clean off your splattered mask.
Usually (if the game has grenades) you press "g".
standard blast radius is around 3-8 feet
Paintball grenades are a great outdoor sports option. The most highly regarded paintball grenade brand would be Empire. Another good brand is Tippmann.
Not really. They get stale pretty quickly, some fields will not let you bring your own grenades, have a small paint radius, and are notoriously easy to wipe.
No, it cannot. Two entirely different systems of operation.
a paintball grenade works by having the paint under pressure, most commonly by using rubber tubing. when it is thrown, there are two small balls that hold the paint in that pop out releasing the paint in multiple directions.
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Most paintball grenades are elastic balloons with a ball bearing, that when removed makes the grenade spin and throw paint. The easiest way is to thicken water with cornstarch and add food coloring, and pump it into a baloon.
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Fragmentation Grenades are explosive bombs that you throw.
The purpose of a paintball gun is to fire paintball pellets, to mark opponents in the game of paintball.
paintball grenade launchers aren't really grenades. They resemble something more like a shotgun. A cartridge is loaded with several small paintballs and then charged up from a separate air tank. So it contains it's own rounds and enough co2 for one shot. when you pull the trigger all the balls fire at once in a spread.