Krale Airsoft talks about the Maple Leaf Crazy Jet Inner Barrels if you want to eke out more performance out of your airsoft gun... "The Crazy Jet Inner Barrels from Maple Leaf have an interesting feature that might help you get the desired result out of your airsoft replica.

As the name suggests, the inner barrels of this series contain the Crazy Jet technology that Maple Leaf has developed to improve the performance of replicas. Time to dive right in, and see what this technology is about.

Get these barrels here."