Our take: JBU is renowned in the airsoft industry for manufacturing superior aftermarket upgrade parts for a reasonable price. All of JBU's products are tested for quality control and all are made from high grade, durable material. JBU's products are on par with premium end manufacturers such as Systema or Prometheus, but for a fraction of the price.
JBU Hop-Up Bucking Specifications:
- Manufactured from high grade Rubber, extremely durable and contours to almost any Hop-Up unit.
- High threshold of tolerance against corrosion/hardening
- Hop-Up Bucking unit comes together with spacer
Disclaimer: Any and all airsoft upgrade parts purchased from Airsoft Megastore will be used/installed at owner's discretion. Actual performance results depend on quality of installation, airsoft AEG barrel length, tightness of the air nozzle seal, and other possible performance-affecting factors. We are not responsible for any damage that may occur with improper installation. For best results, please do all upgrades at a certified professional airsoft technician/shop.