BB FULL Metal Pistol!! Top of The Range Spring Pistol
Shoots BB!! Paint Ball!! - Adjust HOP UP for BB Weight.
Entry Level Training and Defence Kit
Close Up of Slide and adjustable Hop Up
Package Includes
* YT38 Metal Gun
*Training Plastic BB's
*50 Blue .12g Super Accurate BB's
*50 Black .12 Super Accurate BB's
*20 Neon .12g (Tracers)
*20 A Grade Paint Ball BB's
*5 Gamo Targets
What Is Hop-up!!!
The term
Hop-up describes the back-spin put on air soft pellets and
BB's to increase their range and (vertical) accuracy via Bernoulli's principle. Hop-up acts somewhat like the rifling on the barrel of a firearm, but without the increase in horizontal accuracy. Also, being light-weight, airsoft pellets are still affected by wind when fired.
Airsoft hop-up devices apply a backspin to the pellet so that the pressure force acts on the pellet opposite to the direction that gravity is pulling it. This causes the pellet to fall less over a given distance than it would without the spin applied to it.
In airsoft guns this is often implemented as a rubber piece at the rear of the barrel that is thicker at the top of the barrel than the bottom. As the pellet moves past this piece it tends to roll, inducing a backspin. This is occasionally adjustable so that the effect can be tuned to suit the weight or speed of the pellet, and each player's preference.
Includes Gun Saftey CD and More
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