I bought this for 5 bucks..along with a bunch of other stuff for my airsoft gun
like mags and charger, batteries...so shipping would even out for me..(although for the hong kong package..DHL charged me 24 dollars import fee..if you use the USA warehouse, i think u wont be charged)
This thing fitted like perfect with my lipo battery sitting in the top battery compartment where most batteries are for AKs..
https://www.hobbyking.com/hobbyking/...ker_Alarm.html