The Arisaka Inline Scout Mount is a purpose-built M-LOK adapter for mounting modern tactical weapon lights to AR handguards without the bulk and rattle of Picatinny rail solutions. If you run a Surefire Scout, Modlite, Streamlight Protac, Olight, or Arisaka light on a free-floating handguard—especially one with 45-degree mounting flats—this mount cuts clutter and keeps your setup tight and reliable.

The standout feature is adjustable positioning: three slots let you shift the light 0.12 inches either side of center, solving a real-world problem for shooters with front sights or other accessories that compete for real estate on the handguard. The light sits just 0.2 inches above the mounting surface, minimizing profile and keeping sight lines clear. The design works particularly well on popular handguards like the BCM MCMR, Geissele SMR and MK-series, Daniel Defense MFR, KAC URX4, and others that feature angled slots.

Built in the USA from quality materials, the Arisaka Inline Scout Mount comes with M-LOK nuts and all necessary hardware—two 10-24x5/16" Torx button head screws and two 8-32x3/8" Torx flat head screws. At just 0.6 ounces and 3.4 inches long, it adds minimal weight and length to your rifle. Installation requires unthreading the light's tail cap to access the front mounting screw, a small trade-off for the compact profile you get in return. Not designed for cantilever mounting at the handguard tip.

Key Features

• M-LOK mounting interface for modern handguards
• Three adjustable positions for light placement flexibility
• 0.12-inch offset positioning to either side of center
• Ultra-low 0.2-inch mounting height above handguard
• USA-made construction with quality hardware
• Minimal weight and footprint for tactical setups

Specifications

Length	3.4 inches
Height at Mounting Point	0.20 inches
Weight	0.6 oz
Hardware Included	Two M-LOK nuts, two 10-24x5/16" Torx button head screws, two 8-32x3/8" Torx flat head screws
Manufacture	USA

Frequently Asked Questions

What lights are compatible with the Arisaka Inline Scout Mount?

The mount is compatible with 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, and M622V; Streamlight Protac Rail Mount 1, 2, and HL-X (non-laser); Olight Odin; CD REIN; and Arisaka 300, 600, and 18650 series lights.

Will this mount work on 45-degree angled handguard flats?

Yes. The Inline Scout Mount is designed specifically for 45-degree angle mounting surfaces and works excellently on handguards like the BCM MCMR, Geissele Automatics SMR and MK-series, Daniel Defense MFR, KAC URX4, ALG Defense EMR, Mega Arms MML, and similar modern designs. The adjustable positioning gives you extra clearance for front sights and other accessories.

Can I mount this at the end of my handguard in a cantilever fashion?

No. This mount is designed for direct attachment to M-LOK slots on the handguard itself and is not intended for cantilever mounting at the handguard tip.

What hardware does the mount include?

The Arisaka Inline Scout Mount comes with two M-LOK nuts, two 10-24x5/16" Torx button head screws, and two 8-32x3/8" Torx flat head screws. You'll need to unscrew your light's tail cap during installation to access the front mounting screw.