RFB High Efficiency Rifle
**NOT MY RIFLE**
This is from a First owner of an RFB (seen in the Facebook RFB pages).
After posting this image he says:
"Never had any problems before. Fired thousands of rnds. Bought it 12-2011"
"It was in the shop in 2018 for a gas problem"
"Ahhhh, yes. I just adjusted the gas...