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Specter BLACK DIAMOND® 9mm Kit

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Product Features

YHM is pleased to offer our 9mm Top End Kits. These kits include everything you need to convert your standard AR-15 type rifle to fire 9mm ammunition. Only the best products available have been selected for this kit.  These top ends were designed and tested using a MIL-SPEC lower receiver with our 9mm Magazine Adapter and a Standard Hammer.  Due to differences between manufacturers, we cannot guarantee they will work on every lower receiver.


  • Forged 7075-T6 Aluminum YHM Flat Top Upper Receiver
  • "T" Marked Upper Receiver
  • Forward Assist Installed
  • CMMG Ramped 9mm Bolt Carrier Assembly (YHM-921-A)
  • Hahn Precision Magazine Adapter (YHM-920)
  • Metalform 32 Round 9mm Magazine (MAG-9MM32)
  • YHM Extended, Heavyweight Buffer (YHM-925-A)
  • 16" Steel Barrel, Melonite Finish, Heat Treated to RC 25-32, Threaded 1/2"-36
  • Chambered in 9x19mm, with a 1:14", 6 groove Twist
  • YHM Diamond Fluting Improves Rigidity and Aids in Barrel Cooling
  • YHM 9mm 5C2 Flash Hider / Compensator (YHM-80-5C2)
  • YHM Specter Length Diamond Handguard (YHM-9637-DX)
  • YHM Forearm Endcap (YHM-9484-A)
  • YHM Forearm Mounted Flip Front Sight (YHM-9627)
  • YHM Flip Rear Sight (YHM-9680)

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