Description
Ares Amoeba Diamond Precision 0.40g (500 BB’s – Bottle)
Ares Amoeba Diamond Precision BBs in 0.40g are heavyweight 6mm airsoft BBs, supplied in a bottle of 500. Heavy BBs carry their energy further and are far less affected by wind than lighter ammunition, which is why 0.40g is a popular weight for tuned DMRs and upgraded bolt-action rifles that need a stable, predictable flight path.
Ares is a well-known airsoft manufacturer, and Amoeba is its range aimed at practical, performance-minded players. A 500-round bottle is a convenient amount for a marksman or sniper, who fires far fewer shots than a rifleman, and it is easy to carry and pour from.
Performance
At 0.40g, a BB has more momentum than a standard skirmish BB, so it is less likely to be pushed off course by crosswinds or light foliage. It also holds its speed further downrange. The trade-off is that a heavy BB needs enough power and a hop-up capable of lifting it; in a low-powered replica it may simply drop short. Matching BB weight to your replica’s set-up is the key to getting the best from it.
Choosing the right weight
If you are moving up in weight, change gradually and re-adjust your hop-up for each step, testing on a range or chrono line where possible. Your site’s power limits are measured with a particular BB weight, so always follow the site’s chrono procedure. If you run both 0.40g and 0.45g, keep them clearly separated, because mixing weights in one magazine makes grouping inconsistent.
Key features
- 0.40g heavyweight 6mm BBs
- 500 BBs in a bottle
- Ares Amoeba Diamond Precision range
- Stable flight path, less affected by wind
- Suited to tuned DMRs and sniper rifles
- Easy-pour bottle for loading magazines
What’s in the box
- 1 x bottle of 500 0.40g BBs
Compatibility
For 6mm airsoft replicas with enough power and hop-up to lift a 0.40g BB, typically upgraded DMRs and sniper rifles. They are not recommended for low-powered spring pistols or standard skirmish replicas. Check your replica’s manual or ask a technician if you are unsure.
Care and maintenance
Keep the bottle closed when not in use, so dust and moisture stay out. Store it somewhere dry, out of direct sunlight. Never reuse BBs picked up from the floor, as dirt and damage can jam or harm your barrel and hop-up rubber. Clean your inner barrel regularly for consistent accuracy.
Who is it for?
These BBs are for players running tuned DMRs or upgraded sniper rifles who want a heavyweight BB that holds its line.
Please note: Heavy BBs need a replica with enough power and hop-up to use them effectively. Always wear suitable eye protection when shooting.









