So I already have a aero upper and lower.
Sba3 pistol brace
Rosco 11.5 barrel Carbine length has system
Slr adjustable gas block
Solgw lpk
Trigger already sorted out
Midwest handguard
Have a standard carbine gas tube and spring on hand
What buffer and spring would you run in a 11.5 for suppressed use primarily, but need reliability Unsuppressed as well. I know I can adjust the gas tube but want smooth reliable function
Mid to full power loads.
Thanks guys