Maple Leaf Wonder Hop Up Bucking VSR/GBB. Works in airsoft VSR-10 rifles and WE/Marui/KJW gas guns.  The Wonder bucking has a higher contact surface area for unique shooting styles.  Good for heavy weight BBs in the .40g+ range.  The Wonder hop up is good for long distance shooting.  The Wonder series buckings from Maple Leaf utilize a concave hop up system and are designed to be used with the Maple Leaf Omega Tensioner.  These buckings will fit GBB (WE/TM compatible) and VSR cut barrels (bridgeless).  

Degree recommendations:

• 50 degree up to 360 FPS
• 60 degree 290-390 FPS
• 70 degree 355-460 FPS (most popular)
• 75 degree 420-490 FPS
• 80 degree 480 FPS or higher