Upgrade your rifle's standard factory hop-up with this Improved Hop-Up Bucking. Designed for spring mechanisms of SP130-150.
Why choose this hop-up bucking?
A hop-up is a device installed in airguns to increase the range of a pellet or BB. This system puts a back-spin on the ammo as it passes through the barrel, causing the projectile to fall less over a given distance than it would under normal conditions. Most hop-ups are adjustable to account for the weight of ammo and a player's preferences.