• Unique hexagonal design
  • Fit all Mil-Spec lower receivers and most billet lowers
  • Extreme strength


  • Material: 7075-T7 Aluminum
  • Finish: Black
  • Length: 7 3/8"
  • Weight: 6.04 oz.
  • Diameter: Edge to edge OD: 1.4", flat to flat OD: 1.25"


  • AR-15


  • 1x Phase 5 Tactical HexOne AR Pistol Buffer Tube
  • 1x Castle Nut
  • 1x End Plate


Most AR users try to get the best parts for their receiver group, but they sometimes neglect the buffer tube. Even on an AR pistol, the buffer tube should be built as tough as the rest of the weapon. That's what Phase 5 Tactical had in mind when they designed their HexOne AR Pistol buffer tube.

This pistol buffer tube is cut from 7075 T7 billet aluminum. This metal gives the tube extreme strength without making your pistol heavy and awkward. Phase 5 Tactical goes above and beyond by putting this buffer tube through a long tumbling stage. This process eliminates any rough edges on the tube, adding to the snag-free functionality.

As the name suggests, the buffer tube is hexagonal instead of round, giving it a unique aesthetic appeal. It is a great choice if you do not plan to install wrist braces or pads on your AR pistol. Break out of the ordinary with the Phase 5 Tactical HexOne AR Pistol Buffer Tube!

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