Just getting into this as a new hobby, ordered a diode and found a thing you put the diode in with a g2 lens. It was a piece of crap, could not screw together or unscrew, it was thin and and had a cheep chrome outer that just slid off. Only reason I ordered was it was all I could find. You all gave me some links to a dude that had copper ones. I ordered a couple and they were premium and top notch and +10 threads at over half the price of the other pos. I sent it back, mainly cause it would not screw together. Thanks again for this site. I still can't believe the quality for price.