HD15 Crescendo Series (Craftsmen) 18 In. barrel
.223 Wylde chamber, 6.5 Grendel, or .300 AAC Blackout (disc. 2021) cal., GIO, mid-length gas system, 18 in. straight fluted Nitride barrel, Surefire 3P Eliminator flash hider (disc. 2020) or Rugged R3 flash mitigation system (new 2021), fo...