Maple Leaf - 2021 MR Hop 60° Hop-Up Bucking - GBB / VSR (Yellow)

Maple Leaf MR. 2021 hop-up rubber for GBB and VSR platforms, in 60° hardness (yellow). This is the standard rubber version, not the 2021 silicone. The "Maximum Range" MR Hop profile uses an R-hop style pressing area, so the tensioner presses on a wide, even contact patch for more consistent backspin with heavy BBs. Sealing ribs moulded on the outside of the bucking help the air seal inside the hop-up chamber. The degree figure is the hardness of the rubber, not the strength of the hop. Maple Leaf recommend 60° for 295-390 FPS; too soft for your power level and the hop wanders, too hard and it will not lift a light BB. Wide R-hop style contact patch for heavy BBs External sealing ribs for a better air seal Steel C-ring included No inner-barrel modification needed Fitment: Tokyo Marui, WE and KJ Works gas blowback pistols and rifles, and VSR-10 pattern air-cocking rifles.