HAO 4140 Steel made 4"/ 6" extension tube with 14mm CCW thread can turn your 10.5" 416 into a more accurate firing platform.


You can also find the accessories in the photo here:


SMR handguard:


T1 red dot mount:




HAO 416 4"/6" extension set

  • CNC Lathed Steel 4140 barrel extension 4"/6"