The stuff like PMAG 20s for the 308 platform, SCAR-17 mags and similar will be the ones that will be going for hundreds of dollars if a ban happens.
DinanTronics Stage 1 F30 328i M Sport
Dinan 20" Black Performance Wheels
Gunfighter Training Development and Evaluation
AR15/AR10 Armorer/Advanced Armorer
Gunfighter Training YouTube Channel