Maple Leaf MR. HOP-UP RUBBER VSR/GBB

features:

●For GBB/VSR10/Marui/WE/KJW spec inner barrel and without modifying

●Larger & wider contact area inside of BB pellet has better hop effect with heavy BB

●For Heavy BB pellet only

●The “Shield” shape groove design has a better hop effect when the tensioner/lever press it

●Retain the steel “C-ring” design for air seal from “Transformer HOP” series