Specna Arms CORE Bio-degradable BB’s are a cost-effective BB, designed to give excellent performance without breaking the bank. Each bag is 1kg, and manufactured with precision, which allows them to work with guns out of the box, as well as upgraded/tuned replicas with precision barrels.

These are 0.25g BB’s – the go-to ammo for those players looking to get a bit more from their replica. As they’re heavier, they are more resistant to the effects of the wind improving accuracy.