HD15 (Crescendo Series) 18"

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Head Down HD-15 (Crescendo Series) 18" rifle. ALL American, 1-MOA or better guaranteed. FULL transferable lifetime warranty. If you're looking for the best, look for the HD Shield. Each rifle is factory tested and accuracy testament shot at 100 yards prior to leaving. Shoot the Difference!


  • Forged Upper
  • Forged Lower
  • 18" 4150/4151 CrMoV barrel, Nitride finished, 1-8 Twist
  • RUGGED R3 Flash Mitigation System / Suppressor Adapter
  • ALG ACT trigger
  • LuthAr Stock Available, Hogue collapsible stock standard
  • H Buffer
  • Salt Bath Nitride coated Bolt Carrier Group 
  • Hogue grip
  • Receiver Tensioning device
  • Ambidextrous Safety
  • Ambidextrous Tactical Charging Handle
  • Straight Fluting standard on 18" Barrels


*All HD-15's now ship with a forward assist. Slick side available on request.* 

*All gas systems are mid-length unless otherwise specified.*


  • 5
    Classic 18" Grendel

    Posted by Jimmy Hatchel on Sep 29th 2020

    After dealing with the professionals at HD it became apparently clear that care a great deal about their products and their customers. My AR arrived flawless to the FFL. He and the others in the shop were very interested in my purchased and quite pleased as they inspected my riffle. After mounting a scope, I got to the range and the Grendel did not disappoint. After a few rounds to warm and zero, the target was sent down range. The tightness of construction and crisp trigger made really tight groupings. I could not be more pleased with my purchase and the fine people at Head Down Firearms.