Subscribing to our newsletter is worth it! As a subscriber to the Atom-airsoft.fi newsletter, you’ll be among the first to hear about special offers, new arrivals, and upcoming events.
By joining our mailing list, you agree that your email address may be used to send you direct marketing messages, such as our newsletters. This permission is used exclusively for Atom Airsoft’s own direct marketing purposes.
Orders shipped the same day or by the next business day
TerraBB 0.25g TRUEBIO will be released in Q3/Q4 2026.
TerraBB is the market's first genuinely third-generation airsoft BB, which clearly differs from traditional PLA-based bio BBs. Whereas 2nd generation PLA BBs require industrial composting conditions to decompose. The biodegradability of the PBS polymer used in TerraBB balls has been verified by the TUV Austria OK HOME Compost certificate, which shows that the polymer decomposes at temperatures between 20 and 30°C.
The BBs have been developed in Finland, and they are manufactured from non-toxic materials. The technology behind TerraBB is known as TRUEBIO, and it has been designed specifically for the needs of airsoft: safe use in outdoor games without compromises in performance.
Why is TerraBB special?
Genuine biodegradability in nature - no industrial composting requirements
OK Home Compost-certified polymer - an internationally recognised environmental label for polymer we use. Check certificate requirements.
Safe structure - the BB does not fragment on impact, which reduces risks for eye and face protection
Designed in Finland, manufactures in Taiwan - developed in cooperation between enthusiasts and environmental specialists
Use and storage
Because the material is biodegradable in nature, it is more sensitive to moisture than ordinary PLA.
Dry storage conditions significantly extend the service life.
When sealed in the package, the BBs remain usable for at least 18 months. TerraBB reserves the right to make changes. The shelf life may be longer if the patch remains intact and sealed.
In game situations, moisture does not matter - the BBs retain their accuracy and strength throughout the entire game day.
Certified and safe materials
TerraBB represents 3rd generation airsoft BBs, also known as TRUE BIO BBs. The polymers used are OK Home Compost-certified, which is an internationally recognised environmental label.
Technical quality and accuracy
BB weight: 0.25 g
Tolerance: 5.95 mm ± 0.01 mm
Package size: 4000 pcs (1 kg)
Colour: White
Shelf life: 18 months (TerraBB reserves the right to make changes. The shelf life may be longer if the patch remains intact and sealed).
