EMG x Prometheus Air Seal Chamber Hop-Up Bucking For Airsoft AEGs (Model: 60 Degrees)

Model Options:


  • Durable rubber construction
  • Proven performance, excellent range, and superior accuracy, the perfect bucking for 350-400 FPS builds
  • The easiest way to instantly improve your AEG's performance
Hardness: 60 degrees
Compatibility: Works w/ all inner barrels with conventional AEG hopup windows
Package Includes: Bucking, Nub
Material: Rubber

NOTE: Varying elevation, humidity, temperature, and overall climate can drastically affect BB performance. Please keep this in consideration when choosing a bucking type and firmness, along with the appropriate BB weight for your desired effect

MAINTENANCE: For best maintenance, please replace your bucking every 20,000 rounds, or when accuracy and performance begin to become extremely inconsistent. Use silicone spray lightly on the exterior of the bucking for easier installation. Be careful not to get any oil, silicone, or grease on the inside of the bucking or barrel, as it may affect performance

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