Description
The Arisaka 18350 Series Light Body is a shorter, streamlined replacement body for Surefire Scout Light M340DFT weapon lights that allows you to use regular scout light mounts instead of the unreliable "pro" swivel bodies/mounts, while still being able to run the KF1 Turbo head on an 18350 cell or one CR123 cell. The 18350 Series Light Body can also use Modlite OKW/PLH and Malkoff HTL/E2XTL heads for a compact package with excellent output, but these heads require an 18350 cell.
The 18350 Series Light Body is manufactured without the mounting interface for the stock Picatinny clamp. This greatly increases the clearance for front sights when used in combination with the Arisaka Inline Scout Mount on handguards with 45 degree mounting surfaces adjacent to the top Picatinny rail. It will also fit in any aftermarket Scout mount, as it retains the mounting holes and square lug interface on the underside of the light body.
Head compatibility:
- Malkoff E2XTLv3 (18350 cell only)
- Modlite OKW (18350 cell only)
- Modlite OKWv2 (18350 cell only)
- Modlite PLHv2 (18350 cell only)
- Surefire M340DFT (KF1 Turbo head, 18350 cell or one CR123 cell)
- Surefire M640DFT (KF2 Turbo head, 18350 cell only on this body)
- Surefire M600DF (KE2-DF head, 18350 cell only on this body)
Tailcap compatibility:
- Arisaka Momentary
- Unity Gascap USB-C
- Surefire UE
- Surefire DS
- Surefire Z68 Clicky
Please note: If you intend to use Surefire 18350 cells (which we do not recommend), they are notorious for having very thin plastic wrappers. With very little use, the wrappers tend to degrade and allow the battery to short out against the inside of the light body, causing the light to blink under recoil or even turn on without a tailcap installed. We have seen this behavior even with brand new cells. Surefire is well aware of this and now installs a clear, thin plastic crenulated disc down inside their light bodies. If you purchase an Arisaka 18350 Series light body with the intent to swap a DF or DFT head over to it, and want to use Surefire 18350 cells, we recommend pulling the crenulated disc out of the swivel body and inserting it into the Arisaka body. Here's what the disc looks like when removed:

Weight: 0.6 oz
The light body is CNC machined from 6061-T651 aluminum and MIL-A-8625 Type III hard coat anodized black. FDE light bodies are finished in Cerakote over the hard coat anodizing. High quality Buna-N O-rings are included. Product does not include light head, tail cap or mounting screws.
Hardware: One #19 o-ring, one #15 o-ring.
Made in the USA.