Black Nitride model not shown in photo
 
17-4 PH H900
Compatible with all Rearden muzzle devices
ASR (1.375″ – 24) threaded tubes and suppressors
Black Nitride Finish (67 HRC Surface Hardness)
Compatible with Q Cherry Bomb and other Plan B Compatible Muzzle Devices
1.5″ Outside Diameter
.500″ Projection from end of suppressor