>>63912952
Well congratulations, bolt assists are faster than bolt handles! Now what's the next step of your master plan?

>>63913086
WTF, they stopped milling clearance for factory auto sears? You can still complete that lower by using a router and an 80 Arms jig installed backwards to give it a .219" radius and a .450" / .630" relief on the selector bearing. The example pictured is .630" deep