R1A1 Century receiver ????????

[grndesert]

Just bought a R1A1 w/ a Century Receiver. Intresting about it.By the trigger
it has "E" for fire,then "S" for safety,then it has a forward click past the
safety,with a symbol that looks like a box or clip/gun mag.Does anyone know
what that extra click forward is for? Just thought someone might know. :target:

[MAX7.62]

The safety lever is on the lower which is part if the original rifle. Normally Century uses longer pins to prevent the lever from going to the "rock & roll" position, is this FAL a Century built rifle or a kit gun built on a Century reciever by someone else?
Basically the forward position is for full auto - if all the parts are there. Most all FAL variants have the same safe, semi, auto positions except for the Israeli pattern rifles. Just to be "safe" for compliance purposes, I would suggest getting a semi only safety lever which has a "cam" on top to prevent the lever from being switched to the auto position.