Quality detents and springs - Fortis Manufacturing Enhanced Detent and Spring Kit

I bought this enhanced detent and spring kit from Fortis for a new duty grade 300 blackout build. What a difference it makes to have quality springs and detents. I bought another pack just in case I want to do the same thing in the future for another build. Honestly speaking though these should be used in every build I think it's worth it. I highly recommend them and everybody should have at least one pack on deck.