
Revised KUNA causing issues with Trip
I thought that I would share this here as I am going through this.
My KUNA was made June 2026, it has an updated lower from the factory that looks like it was created to prevent the use of a trip. it causes SEVERE binding.
I have been talking with /u/YourBroStevo and that is his impression as well.
Upon deeper inspection, it does not look like these raised, I'll call them, fingers have any try function inside of the firearm. My thought is to grind them down to the previous version's profile.
Just wanted to share this incase people who recently purchased a KUNA were contemplating ordering or making their own trips.
I reached out to SA asking what the function of these raised fingers are and they gave me vague responses;
"After a product is released, we continue to evaluate an improve our products. As part of that ongoing process, Enhanced design features may be incorporated into firearms already in production in order to help with fluxionality."
I asked for additional details and got this as a response:
"It can depend, this is pry feeding and extraction.
So runs smoother."
Does anyone else have these in theirs that is running the factory lower FRT?
What have you done to allow a trip to function? (I am currently PA6-CF, however, I am wondering if I were to have this made of metal with a groove in the middle to allow the finger to remain, what longevity would I be sacrificing?)