LHTCU (low hardware talon claw u) assembly guide. 

There is a little hook inside of the lever, you want to put a ruber band on that. You also see a hole in the magwell that sits on the same height as the trigger. Loop it around there and than put the rubber band back on the trigger

@@space_designs Thanks for the clarification. There's two hooks on the lever, which one do you use? also there seems to be two holes on the magwell. I've been having trouble finding an exact definition of "TC Length spring". Can you tell me what you cut your's to?

There is a little cilinder that has a thicker cap on it. It sits below the hole for the pin thats what I ment with the hook. For spring length I suggest you go with roughly 140mm of spring thats about the same as 14 coils of k25.

There is one, only I choose to install it the wrong side

Yep! It's tahlon mag, look it up on thingiverse. They also made a printable katana mag.