Maple Leaf MR.HOP 60 Degree Hop-Up Bucking for R-HOP Airsoft AEG Barrels

Specifications Manufacturer: Maple Leaf FPS compatibility: 290 - 390 FPS Hardness: 60 degree Compatibility: Airsoft AEG Inner Barrels with large window openings to match the large inner contact patch.. Material: Rubber Color: Yellow Features Rubber construction 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