One week after purchasing a ASR sniper rifle i took it apart to shorten the barrel 6 inchs" TO find that a small part of the hop-up was broken. the plastic arm?
After spending almost 3 hours with e-mails and talking, with out of state techs, { minus about 20 min. dancing with a troll at another site locally ] and being told i would have to purchase an entire hop-up unit. I said heck with that, I'll fabricate my own out of alumin.
Then by chance i was at a local air soft shop, Explained the problem to the owner, he said wait a minute, made a call to L A. then Walla , three days later there was the part + 1 extra, for 20% of the cost of an complete hop-up unit.
Lesson learned ? Sometimes check with local techs, stores , or of course this A P site with a problem or need before crossing the border.