LWRC IC-A5 lower with Geissele SSA/E trigger I love. Would like to use this lower w/a PWS MK109 MOD 2 .300BLK 9.75” upper. My range is across state lines (30min from where I live). Considering Form 1 for SBR of my lower however have been told this is not a good decision compared to an Aero Precision pistol lower with brace. Apparently I have to call or write Sheriffs, ATF etc if I want to go to my range with the SBR? But, if I buy a pistol lower then I need nothing and have total freedom? Am I understanding this correctly? What am I missing here, this seems absurd to me. I don’t want or need a pistol lower, my preference is to use my awesome LWRC lower w/SSA/E. If it means constantly writing the ATF and local LEO however I want to avoid that if possible. Thank you for your insight, DB