T8 Flat Hop-Up Arms Set for Original Marui ( V2 )

Using black bucking and the T8 hop arm, maybe increases accuracy up to 45/50m a little but requires max hop for .36g at this range (Am using stock hop up chamber/ barrel and only getting 290fps on .2s with HPA@120psi). The stock hop arm and nub with a grub screw inserted, using DP green bucking at just over half hop, can hit 45/50m accurately enough (slightly less accuracy) but also has the ability to lift heavier BBs with my set up.