Decided I don't need another block II so parting this out. Every thing is in mint condition. Less than 50 rds fired. Barrel comes with DD clamp on gas block and tube. $215 for the barrel/gas block/tube $120 for the receiver - SOLD FTF in the Parkrose/Gateway area of NE Portland or M-F between 9-4pm at Kaiser Permanente Sunnyside campus in Clackamas.