Larger & wider contact patch for better hop effect with heavy BB's
The design in the shape like a "shield" ensures better support of the hop up with the support levers
The shield-shaped groove design has a better jump effect when the tensioner / lever presses it
Manufacturer: Maple Leaf
FPS compatibility: 355 - 460 FPS
Hardness: 70 degree
Compatibility: Airsoft AEG Inner Barrels with large window openings to match the large inner contact patch.