I just found this one.....

I stumble onto a 3.1 SA Beauty...
Trigger is milled and SA
RRAD 4-66 marked in INK on the right front reciver leg also B33B D28291 35
Barrel is marked SA6535448965MD45 P M little chicken with a shiny breech face.
Front sight . marked wide ears
Windage knob DRC
Op Rod is cut D35382 SA
Bolt D28287-17 SA B4C below it

The Stock and wood have a orange skin feel to them. Boxed P on inside pistol grip
There is a O in the barrel channel
The but under the the plate 2E marked @ bottom.
Also a curious small metal wire is embeted in the Porch under the reciver heel??
The guns color is a uniform GreyGreen with the exception of the sight spring steel cover.
I know its standard RRAD rework but its cool.
The gas tube is on tight, shoud I take it off if i just want a shooter? I intend to use it at the Garand shoot in May.