>>64464412
>ASDesigns
So here's my dissertation on auto reset triggers

The mil spec AR-15 carbine cyclic rate is 700-970 RPM but the low end is on account of the particularly narrow M4A1 gas port [.0625" diameter] and H2 buffer [4.6oz]. Given the additional work of resetting the trigger, auto reset triggers are bolt velocity dependent so you'll want to be north of 850. The example videoed is different from the ASD but they all operate on the principle of camming