MADBULL Noise Maker Pet Bottle Adapter(14mm CCW)(Black)

[New product]MADBULL Noise Maker Pet Bottle Adapter(14mm CCW)(Black)

Do you want to keep no sound? Here we are.

More detail:
http://airsoft.tiger111hk.com/p20436/MADBULL-Noise-Maker-Pet-Bottle-Adapter%2814mm-CCW%29%28Black%29/product_info.html