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Mean Arms has developed probably the most refined and sophisticated 9mm AR delaying system on the market, what they call Bearing Delay. This began as an exploration into fitting HK-style roller delay into and AR, and ended up with a system using three spherical bearings to redirect chamber pressure to delay opening. The system is particularly well suited to high end competition use, where the development data form Mean Arms can be use din conjunction with different “lifters” (the equivalent of the locking wedge in a roller delay system), buffers, and ammunition types to tune the system for minimal muzzle climb and felt recoil.
Disclaimer: Mean Arms sent me this upper for filming. The lower assembly I provided myself.
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At Forgotten Weapons I think the most interesting guns out there are the most obscure ones. I try to search out experimental and prototype weapons and show you how they work, in addition to more conventional guns that you may not have heard of before. You’re much more likely to find a video on the Cei Rigotti or Webley-Fosbery here than an AR or Glock. So, do you want to learn about something new today? Then stick around!