Flashlights & AccessoriesArisaka DefenseSold by Brownells

Arisaka Defense

Offset Scout Mount - Picatinny Offset Scout Mount

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Mounting Scout-style

Lights at a 45-degree offset

Compatible Surefire

Surefire M300 and M600 Scout

Also Fits

Arisaka 300 and 600 series

Compatible Streamlight

Streamlight Protac Rail Mount 1,

Replaces Factory

A low-profile offset mounting option

$50.00
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SKU: 100040414

Overview

This offset light mount is built for shooters who want to place a Scout-style weapon light at a 45-degree angle without adding unnecessary bulk. It is designed for the M300 and M600 Surefire Scout lights and also works with Arisaka 300 and 600 series lights, plus Streamlight Protac Rail Mount 1, 2, and HL-X models. By replacing the factory Picatinny adaptor with a low-profile offset option, it offers a cleaner setup for KeyMod-equipped rifles. The black finish and compact profile make it a practical choice when keeping accessories streamlined matters.

Why Hunters Choose the Arisaka Defense

45-degree Light

Placement on KeyMod handguards

Compatible Surefire

Surefire Scout M300 and M600

Also Fits

Arisaka 300 and 600 series

Works Streamlight

Streamlight Protac Rail Mount 1,

Low-profile Replacement

For the factory Picatinny adaptor

Key Features

  • Designed for mounting Scout-style lights at a 45-degree offset position.
  • Compatible with Surefire M300 and M600 Scout lights.
  • Also fits Arisaka 300 and 600 series lights.
  • Compatible with Streamlight Protac Rail Mount 1, 2, and HL-X lights.
  • Replaces the factory Picatinny adaptor with a low-profile offset mounting option.
  • Fits KeyMod and is finished in black.

Best Used For

  • Hunters mounting a Scout-style light at a 45-degree offset on KeyMod handguards
  • Users replacing a factory Picatinny adaptor with a lower-profile light mounting option
  • Owners of Surefire M300 or M600 Scout lights seeking compatible offset placement
  • Shooters using Arisaka 300/600 series or Streamlight Protac Rail Mount lights
  • Minimalist setups where compact size and very light added weight matter

Specifications

ColorBlack
CompatibilityDesigned especially for the M300 and M600 Surefire Scout lights; compatible with Arisaka 300 and 600 series lights; compatible with Streamlight Protac Rail Mount 1, 2, and HL-X lights
Factory Adaptor ReplacementReplaces the factory Picatinny adaptor
Length1.265"
Material6061 T-6 Aluminum
Mount Position45-degree position
Mount TypeOffset Scout Mount
Patented ScrewsBMC's patented inverted KeyMod screws
PlatformKeyMod
Thickness0.20"
Weight0.4 oz

Pros

  • Designed for 45-degree light placement on KeyMod handguards
  • Compatible with Surefire Scout M300 and M600 lights
  • Also fits Arisaka 300 and 600 series lights
  • Works with Streamlight Protac Rail Mount 1, 2, and HL-X
  • Low-profile replacement for the factory Picatinny adaptor
  • Very lightweight at 0.4 oz

Considerations & Trade-offs

  • Designed specifically for KeyMod use, so it is not a universal mount solution for other rail systems.
  • It is intended for a 45-degree offset light position, which may not suit every rifle setup or preferred light placement.
  • The mount is built to replace the factory Picatinny adaptor, so it is a dedicated mounting option rather than a general-purpose adapter.
  • Compatibility is limited to the listed Scout-style lights and models, so fit should be verified against the exact light being used.

Suggested Comparisons

  • Weapon light mounts
  • KeyMod accessory mounts
  • Scout-style weapon light mounting solutions
  • Low-profile rifle accessory mounts

Suggested Accessories

  • Weapon light
  • KeyMod rail accessory
  • Picatinny rail adapter
  • Replacement mounting hardware

Frequently Asked Questions

Which lights is the Offset Scout Mount designed for?

It is designed especially for the Surefire M300 and M600 Scout lights. It is also compatible with the Arisaka 300 and 600 series lights and the Streamlight Protac Rail Mount 1, 2, and HL-X lights.

What mounting system does this version fit?

This version fits KeyMod.

What position does the mount place the light in?

It is made for a 45-degree offset mounting position.

Does this mount replace the factory adapter?

Yes. The long description says it replaces the factory Picatinny adaptor with a low-profile offset mounting option.

What product details are provided for size and construction?

The provided specifications list 6061 T-6 aluminum construction, a length of 1.265 inches, a weight of 0.4 oz, and a black finish.