WHAT DOES SAGE EBR FOR SALE MEAN?

20” SAK barrel (7791362) continues to be Great with light have on; Aggressive muzzle brake. The receiver is actually a TRW receiver with accurate TRW bolt assembly. Semi-automobile functionality works flawlessly. As talked about prior to this rifle is fully housed in a Troy Industries chassis. L3 EOTech crimson dot reticle sight with MBUS flip up