HD15 ( S.R.O. with C.A.S.S. System) 10.5" Pistol

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The HD-15 SRO with C.A.S.S. by Head Down Firearms, was designed to protect what you love most.. The Covert Assignment Support System, or C.A.S.S. (Patent Pending), provides School Resource Officers with a discreet method of carrying a rifle caliber pistol or a Short Barreled Rifle, ready for quick deployment. The insert is multi-configurable and acts as a holster for the HD-15 pistol, or a scabbard for the HD-15 SBR variant.  1 MOA or better accuracy guarantee. Transferable lifetime warranty. 

Features and accessories provided:

  • Forged Upper/ Lower
  • ALG Mil Spec Trigger
  • Salt Bath Nitride Bolt Carrier Group (MPI Tested)
  • 4150/4151 CrMoV barrel, Nitride finished, 10.5", 1-8 Twist
  • RUGGED R3 Flash Mitigation System / Suppressor Adapter
  • BCM Mod 3 Grip
  • LAW Tactical Folding Stock Adapter
  • STREAMLIGHT PRO TAC Rail Mount HL-X Long Gun Light
  • MAGPUL Offset Scout Mount
  • SAMSON MANUFACTURING steel front and rear sights
  • M-Lok QD Swivels
  • M-Lok QD rail attachment
  • Blue Force Gear Vickers Padded 2 pt Sling
  • Ambidextrous Safety
  • Ambidextrous Tactical Charging Handle
  • H2 Buffer
  • Receiver Tensioning Device


C.A.S.S. - Covert Assignment Support System is a Mystery Ranch Backpack with a Kydex insert, CNC machined by C & G Holsters specifically for Head Down Firearms.