WHAT DOES M4A1 GEL BLASTER RED AND BLACK MEAN?

This is an older thread, you might not receive a response, and could be reviving an aged thread. remember to contemplate developing a new thread. I are already getting things like blasters and accessories from iHobby now for a long time. I must say the range, quality and prices are perfect as is the workers there. As I Reside local I have on many