Arisaka Tailcap Adapter – Streamlight Protac Railmount 1 and 2


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Arisaka Tailcap Adapter – Streamlight Protac Railmount 1 and 2

*This product is not compatible with the Protac Rail Mount HL-X*

The Arisaka Tailcap Adapter allows Streamlight Protac Railmount 1 & 2 lights to use Surefire Scout tailcaps and remote switches. In particular, the Protac Rail Mount lights can now be used with the Surefire SR-D-IT & TNVC/Unity TAPS dual switches, which are commonly paired with laser/illuminators.
One of the main flaws of the Rail Mount that has already been addressed is Streamlight did not design a front battery spring into the light. Meaning under recoil the battery can come off the front contact and cause the light to flicker or blink. To try and prevent this the Arisaka Adapter comes with a removeable buffer O-ring on the front face to ensure the battery can’t move rearward while firing. Made in the USA.

Compatible Tailcaps:

Surefire UE (Newest version with black ring where the remote plugs in. The old gray ring version is not compatible)
Surefire DS
Surefire Z68

Compatible Remotes (with Surefire UE or DS tailcap):

Surefire ST07
Surefire SR07
Surefire SR-D-IT
Unity TAPS
Unity Hot Button
Modlite Modbutton
Modlite Modbutton Lite (Surefire plug)


  • Diameter: 0.852″
  • Length: 0.28″ additional length to light (plus tailcap)
  • Weight: 0.4 oz
  • CNC machined from 6061-T651 aluminum and MIL-A-8625 Type III hard coat anodized

Item Number: TA-RM12


Rangeview Sports Canada
Licensed Gun Shop in Newmarket, Ontario

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