OP,
Either a Gentry or LaPour/PTG shroud safety is NOT the same operation as a military rifle design swing safety.....aka 98,70,96,03.
The only resemblance is that the safety has to cock the firing pin to disconnect the sear/trigger.
Remington operation is NOT of military design as it is cock on open & cock on closed....unless TIMED correctly.
A Remington is NOT of military rifle design & should NOT be modified to attempt operation as such.