This battery will make the rof in your gun really well. It fits in my g4-a3 great and works fine, but i used it for a whole day and charged it twice and then i used it about two weeks later and it died after 20 shots on semi. Then I tried it again 5 days later making sure it was charged, but it still died extremely fast. I don't know if I got a defective battery or my charger doesn't work but its a tenergy smart charger. So good luck with it.
fits easily in crane stock
lasted a while before it started dying
not that expensive
stopped working after two weeks
possibly might be defective
overall it is good as long as it last
Rating: [3 of 5 Stars!]