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Arisaka Tailcap Adapter – Streamlight HL-X to SureFire Pressure Pad


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What’s Included | Specs | Pictures

The Arisaka HL-X Tailcap Adapter takes the proprietary tailcap found on the Streamlight HL-X and adapts it to use SureFire tailcaps and pressure pads. This adapter also includes two o-rings to fix the known flickering issues of the HL-X, one for CR123 batteries and one for 18650s.


One Arisaka HL-X Tailcap Adapter; two o-rings

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  • This adapter includes two different o-rings, one for CR123 cells and one for 18650 cells, which can be placed on the back end of the battery before screwing on the adapter. The o-ring ensures the battery cannot move rearward while firing, fixing some of the flickering issues common with the Protac Rail Mount lights.
  • Streamlight’s TEN-TAP Programming is still fully functional with the use of SureFire tailcaps and remote switches in combination with the Arisaka Tailcap Adapter. 
  • CNC machined from 6061-T651 aluminum.
  • Type III hard coat anodized.


  • Streamlight Protac Rail Mount HL-X
  • DOES NOT fit the Protac Rail Mount HL-X Laser

Made in the USA.

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Arisaka Tailcap Adapter - Streamlight HL-X to SureFire Pressure Pad: Enhanced flashlight control and compatibility.

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