GX just responded to me and said - “circuit board was not always,just exsit in recent 1-2 batch of goods.It has been solved.” No idea what that actually means
If you decide to go with STL get the falx if you are looking for quiet over size/weight. If you’re looking at DonnyFL in my experience for .25 his larger diameters work better. Ronin Sumo or Tatsu.
eotech copy. Works well and has decent glass. Got it as part of a bundle purchase. If you’re interested in trying a holographic red dot here’s an easy way to do it cheap $30 plus shipping