ASG Open Blaster Bio-BB 0.28g 3300 Bottle

£13.95

0.28g heavier weight for improved range and wind resistance
Ideal for upgraded AEGs, DMRs and higher-powered replicas
Fully biodegradable PLA, site-legal at UK woodland fields
Held to a tight plus/minus 0.01mm tolerance for accuracy
Perfectly spherical, seamless, high-gloss finish for clean feeding
3300 rounds per resealable bottle

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Description
Specification

Heavier BBs for range and stability

The ASG Open Blaster Bio BB in 0.28g is built for players running upgraded AEGs, DMRs and higher-powered replicas who want extra range and consistency. The added mass carries more momentum downrange, cutting through light wind and foliage far better than a lightweight BB, so your shots land where you aim at distance.

Biodegradable and site-friendly

Made from PLA, a plant-based biodegradable plastic, these BBs break down naturally in the presence of moisture and oxygen. That makes them fully compliant with the bio-only BB rule enforced at most UK woodland and outdoor sites, so you can play anywhere without a second thought.

Match-quality consistency

Each BB is held to a plus/minus 0.01mm tolerance with a diameter between 5.96 and 5.98mm and a polished, perfectly spherical, seamless finish. The result is smooth feeding, reduced hop-up wear and repeatable accuracy shot after shot, exactly what you want when reaching out to longer engagement ranges.

Game-ready value

Supplied in a resealable 3300-round bottle, there is enough here for a full day of skirmishing and easy top-ups into your magazines. Pair them with a suitable battery or gas from our BBs, gas and batteries section to keep your kit game-ready.

Product information reviewed by James Smith. Every gun is checked & serviced by our Rochester workshop before dispatch.

General
Brand	ASG
Colour	White
Other
Calibre	6mm
Quantity	3300 rounds
Material	Biodegradable PLA (polylactic acid)
Tolerance	Plus/minus 0.01mm
Packaging	Resealable bottle
Range	Open Blaster Bio
Weight per BB	0.28g
Diameter	5.96 to 5.98mm
Finish	Polished, seamless, high gloss
Type	Biodegradable airsoft BB

Recommended upgrades & accessories

Frequently asked questions

Why choose 0.28g over 0.20g?

Heavier 0.28g BBs carry more momentum, so they hold their line better in wind and stay stable at longer ranges. They suit upgraded AEGs, DMRs and higher-powered replicas. For a stock gun under around 350fps, the lighter 0.20g is usually the better match.

Are these biodegradable and site-legal?

Yes. They are made from PLA, a renewable plant-based plastic that breaks down naturally with moisture and oxygen. That satisfies the bio-only BB policy enforced at the majority of UK woodland and outdoor airsoft sites.

Will 0.28g BBs improve my accuracy?

In an appropriately powered gun with the hop-up dialled in, yes. The extra mass resists deflection from wind and light contact with foliage, giving tighter, more consistent groups at range. You may need to increase your hop setting slightly compared with lighter BBs.

Do these fit any airsoft gun?

They fit any 6mm airsoft replica, but very low-powered or stock guns may struggle to lift a 0.28g BB with hop-up. They are best paired with a healthy AEG, a strong gas gun or an upgraded platform. They are not for 4.5mm airguns.

How long does a bottle last?

With 3300 rounds per bottle, one is plenty for a full skirmish day for most players, and easy to decant into magazines between games. Keep a spare bottle in your kit if you shoot high volume on full-auto.

ASG Open Blaster Bio-BB 0.28g 3300 Bottle