FX Wildcat MK3 CERTIFIED PRE-OWNED is an amazing airgun with a few upgrades. Heavy Hammer and Spring. .25 heavy slugs liner 1:18 twist. CARBON FIBER SLEAVE. BOTTLE TOBARREL BAND for extreme ridgeness and accuracy. Carbon fiber sleave above the shroud to add on  firmness ridgeness. Picatinny lower rail was add. Competition trigger.