Rock River Arms 16in Predator Pursuit Complete Upper.
16" Air Guaged and cryogenically treated Heavy Match Stainless Steel Barrel-1:8 Twist
-Over 1/2lb lighter than the 16" Varmint barrel
Light Varmint Gas block with Sight Rail
Mid length Rock River Free Float Tube
PHOSPHATE Bolt Carrier Group
223 WYLDE Caliber to allow use of 5.56 or 223