Maple Leaf Wonder Hopup Rubber for Marui / WE GBB & VSR ( 75 )

The new WONDER bucking from Maple leaf, is the latest in their line of hop rubbers, boasting an even larger contact patch. The new patch design helps increase range, accuracy and overall hop effect on heavy ammo, including .48’s and .5 BB’s. - Slightly narrow entrance for better sealing to achieve more consistent power output. - C-Clip to enhance lip stiffness for further sealing - Special pressure point geometry for improved long range performance NOTE: Due to special pressure point geometry, this product is optimized for use with inner  barrels with open type hop up slot. (i.e. Marui original pistol inner barrel and most compatible inner barrels) Recommended hardness/FPS combinations: 50 degree: Up to 360 FPS 60 degree: 295-390 FPS 70 degree: 360-460 FPS 75 degree: 425-490 FPS 80 degree: 490 FPS up