Out-of-Stock HOP-UP BUCKING MAPLE LEAF HOT SHOT HOP UP RUBBER FOR GHK AK / 553 (50º) RA-AGENT-ML-054-50 €9.90 Maple Leaf rubbers are reputed as the best on the market, especially for the use of heavier BB weights. They must be paired with a Maple leaf hop up tensioner for best results. They work better than Flat Hop systems. The measurement in "degrees" corresponds to the hardness of the rubber. The higher the weapon's energy, the greater the hardness. So, for... View