The Maple Leaf Cool Shot bucking is a silicon rubber allowing the Crazy Jet inner barrel to be installed into AEGs.

Silicone construction for improved low temperature performance.

This is a high performance hop up rubber engineered to boost range and FPS when using heavier weight BBs. A concave patch maximises contact with the BB, improves air seal and accuracy.

Recommended hardness / Velocity Combination (with 0.2g BB)
50° - < 295 fps
60° - 295-390 fps
70° - 360-460 fps
80° - 420-520 fps
85° - > 520fps