Lightning Pump Action (LPA) Trigger Assembly instructions?

[CCYooper]

Last week I posted a question regarding assembling a bag of parts I was given regarding a trigger assembly. I figured out where the parts go but couldn't figure out what trigger group it was for a schematic or where the springs go as they are different from a standard M500. Well now that I am back I figured out its an LPA assembly; however, there are no schematics, instructions, or parts diagrams on the net that I could find. There are 4 types of twisty type springs and I'm having trouble placing them all. If someone can point me towards a U-tube video or take pictures down inside the assembly I can probably figure it out if I can see where they go. See my previous post on slotted trigger safety question for pictures. Regards,

 

[Wundermech]

CCYooper,
Internet info is indeed skimpy on this one! I did find the Mossberg adjustment instructions without too much trouble and noticed that it was shown as "Patent Pending". A search of the USPTO database turned up the coresponding patent, which includes a bunch of drawings that might help you get it together. I've (hopefully) attached both documents. Hope this helps.

 

[CCYooper]

Thank you! Unfortunately it does not show all the springs but I think I can figure it out. However, what it did show is that I am missing a couple of small springs and spring caps in the trigger which must have been lost when the individual took the group apart.

 

[Bobster]

Sometimes you can make special "tools" to help with spring assembly. One that comes to mind is a paperclip bent into a tiny "U" hook. You also might try Harbor Freight. They have this "pick tool" set for $5.

 

[CCYooper]

Roger that, my friend is a retired dentist and I have a full box of assorted picks, hooks, and other shaped instruments to work the springs.