In this video, I show and explain the concept behind the
"UNRIVALED" 2-stage buffer magnetic system
https://unrivaledproshop.com/

RCA Titanium BCG
https://rubbercityarmory.com/rifle-pa...

ARMASPEC Buffer System
https://armaspec.com/ar-15-parts/lowe...

JP ENTERPRISES Buffer system:
https://www.jprifles.com/1.4.7.2_os.php