Downvent Bolt Carrier Groups - Reliable or Reckless?

Video of troubleshooting issues first couple of mags: https://youtu.be/pHpkqScsdcE 0:00 Intro 0:15 Why Down vent? 1:07 The plan 2:23 Benchtop overview 3:25 Expectations 4:21 range time 5:13 shooting 1k rounds 7:14 Magazine inspection 8:07 BCG inspection 9:08 Lower inspection 10:09 Final Thoughts Sponsorship Disclaimers and Disclosures: No payment was received for the making of this video. The BCG was provided by KAK. Basically I emailed KAK and asked for a free BCG just to save me some money from buying my own and they said yes. Other Disclaimers and Disclosures: All firearm demonstrations are conducted on a closed range and under the supervision of a certified range safety officer. All demonstrations are conducted with proper licensing and paperwork with a Type 07 FFL and Type 02 SOT where needed. We are not affiliated, associated, authorized, endorsed by, or in any way officially connected with any government organization or agency. All stunts are performed by or under the supervision of trained professionals, do not anything you see at home. We do not sell firearms or firearm accessories and we provide no instructions on manufacturing, conversions, or modifications.