Internal Parts SHS 70 Degree Silica gel Airsoft AEG Hop-Up Bucking SHS PPS CA-HU004-70 $6.99 Brand: SHS Material: Silica gel rubber Hardness: 70 degrees Compatibility: Airsoft AEG inner barrels Quantity: 1 hop-up bucking Dimensions: Fits most inner barrel sizes Weight: Lightweight for easy installation and handling Color: Blue Or Black (may vary depending on production batch If you require colors may need to wait 15 days) Package includes: 1x... Add to cart