A+ AIRSOF DEVIL Hop-Up Bucking for KJ / Marui / WE GBB Airsofts ( Ver 2 )

• Slightly narrow entrance for better sealing to achieve more consistent power output.
• Special pressure point geometry greatly improves hop up performance and more predictable trajectory.
• Suitable for Marui / WE / KJ GBB Pistols

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 )