New Delayed Blowback Just Dropped
This video explores the new Mean Arms 9mm Bearing Delay Upper Receiver, which utilizes bearings for a delayed blowback system, distinguishing it from traditional roller-delayed designs. The content includes an introduction to the system, initial range tests with live fire, a "mag dump," and a comparison of its performance against traditional blowback systems and an MP5. The creator also touches on handgun grip testing and concludes with their overall assessment of the innovative upper receiver. Links to the creator's 3D printer, filament, merchandise, Patreon, and recommended gear are also provided.









