Arisaka Defense Inline Scout Light Mount – MLOK, Keymod, and Picatinny

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Arisaka Defense Inline Scout Light Mount – MLOK, Keymod, and Picatinny

The Arisaka Inline Scout Mount is a specialized mount designed to fit Scout pattern flashlights on MLOK, Keymod, and Picatinny handguards. This mount is specifically designed for use with Surefire Scout Light patter lights. One of the best things about the Inline Scout Mount is its low profile. It is especially useful on handguards with 45-degree angle mounting flats, such as the BCM MCMR, Geissele Automatics SMR MK4, MK8, and MK16, and other handguards.

When used on a 45-degree angle mounting flat, the Inline Scout Mount allows the user to position the light closer or farther away from the top Picatinny rail to give clearance for front sights or other accessories. This feature is particularly beneficial for operators who use IR lasers and other accessories.

The mount provides three positions, allowing an offset of 0.12″ to either side of the center of the handguard. Note that this mount is not intended for use in a cantilever fashion where it hangs off the end of the handguard.


  • Modlite PLH, PLHv2 and OKW
  • Surefire M300A, M300B, M300C, M300V, M312, M322, M312V, M313V, M322V, M600B, M600C, M600P, M600U, M600V, M600DF, M612, M622, M603V, M612V, M622V,
  • Streamlight Protac Rail Mount 1, 2, and HL-X (non-laser)
  • Olight Odin
  • Cloud Defensive REIN
  • Arisaka 300, 600, and 18650 Series

M-Lok Inline Scout Mount Surefire M300 M600 Streamlight Protac


In order to reduce the overall length of the mount as much as possible, it is necessary to unscrew the tail cap of the light to access the front-most mounting screw. This might seem like a small detail, but it can make a significant difference in terms of usability and performance.


  • Brand: Arisaka Defense
  • Model: Inline Scout Light Mount
  • MPN: ISM-M, ISM-K, and ISM-P
  • Fit: MLOK, Keymod, and Picatinny
  • Material: Aluminum
  • Finish: Anodized
  • Weight: 0.6 oz
  • Dimensions:
    • MLOK and Keymod- 3.4″ L x 0.20″ H
    • Picatinny – 1.265″ L x 0.20″ H
  • Color: Black and Flat Dark Earth

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Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Customer satisfaction is the cornerstone of Arisaka. They want you to be 100% satisfied and feel secure about your purchase from Arisaka, so their warranty and return policies are simple and unrestricted.

All Arisaka products include a lifetime warranty. If a part is broken, smashed, destroyed, or defective, we will replace it. If for some reason we no longer make that exact part, they will contact you and let you select something comparable. They also do not care who originally purchased the part. If it’s in your hands, then it’s your warranty.

Please email or use their contact form to let them know that you need an RMA for warranty work.