Geissele. Nothing but. Best triggers out there, particularly the SSA-E.
I installed a hipertouch edt3 in my DPMS Recon and my group size shrank from ~1 moa to ~.5 moa at 100 yds. I just had an SLR sentry 7 adjustable gas block installed because the gun was way overgassed with the AAC SDN-6 suppressor. I’ll test that out tonight for the first time.