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Prometheus Air Seal Chamber Hop-Up Bucking For Airsoft AEGs (Model: 70 Degrees)

ID: 31082 (BU-Prom-Hard)
Prometheus / Laylax859188310827458210958046231082
4.8 stars, based on 37 reviews
Prometheus Air Seal Chamber Hop-Up Bucking For Airsoft AEGs (Model: 70 Degrees)
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Prometheus / Laylax


This item is currently Sold Out


  • Offers improved compression and feeding compared to OEM buckings
  • Recommended for all Prometheus precision tight bore inner barrels. Suitable for varieties of precision AEG inner barrels
  • Improves accuracy and range
  • Durable construction

Manufacturer: Prometheus


Hardness: 70 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

About Prometheus / Laylax

Providing products in the Japanese market for the better part of 20 years, Laylax is well known for their high manufacturing quality and precise tolerances. Their tried and true parts and accessories have led them to be the leader in Japanese airsoft engineering.

37 Customer Reviews

(Write a review)

by Madison M. on 04/02/2022
"Purple works well in numerous chambers. Have one in my ICS L85 and works great. Great at maintaining compression, provides good hop, and have no feeding issues.
by Harrison S. on 09/24/2021
"Works perfectly with my madbull 6.03 barrel. Now my HPA'd P90 shoots dimes at 200+. Highly recommend and easy to install
by Jerry S. on 07/29/2021
"I use the reds on my m249 featherweight and other guns that go through a ton of rounds. Not as accurate as the purples but last alot longer. Purple or red you cant go wrong.

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This item is currently Sold Out. Most out of stock items are restocked within 1-3 weeks. Some items may take longer. Please add this item to your wishlist to keep posted on its availability.