OFFSET M620 ADAPTER FOR M620, M951/952/962 SUREFIRE LIGHTS
The Arisaka Defense Offset M620 Adapter bridges your Surefire tactical light and your chosen Arisaka Scout Mount, letting you run modern light placement without sacrificing rail real estate. If you're running a Surefire M620 or Millennium-series light (M951, M952, M962) and want the flexibility of offset mounting—whether that's keeping your light clear of a front sight or shifting it for hand position and optics clearance—this adapter makes it possible. The recessed profile keeps things sleek and snag-free.
Arisaka engineered this in 6061-T651 aluminum and hard-coat anodized it to mil-spec (Type III). It's machined in the USA and built tough enough for duty and field use. The adapter comes with the screws you need to mate your light body, so you're not hunting for hardware.
Keep in mind: the Offset M620 Adapter is the bridge only—you'll need a compatible Arisaka Offset Scout Mount or Side Scout Mount (KeyMod, M-Lok, or CMR versions) to complete the setup. Picatinny mounts won't work with this adapter. Install takes an Allen wrench and a TorxPlus driver, neither of which ship in the box.
Key Features
- Recessed, low-profile design minimizes snagging and bulk
- Lateral adjustment positioning available with compatible Offset Scout Mounts for sight and accessory clearance
- Works with Surefire M620 and Millennium-series lights (M951, M952, M962)
- 6061-T651 aluminum with MIL-A-8625 Type III hard-coat anodize for durability
- CNC machined and made in the USA
- Includes mounting hardware; simple installation with standard tools
Specifications
| Length | 2.15" |
| Weight | 0.4 oz |
| Material | 6061-T6 aluminum |
| Finish | MIL-A-8625 Type III hard-coat anodize |
| Hardware | Two 8-32x3/8" Torx flat head screws, two 10-32x1/4" hex button head screws |
| Installation Tools Required | 1/8" Allen wrench, IP20 TorxPlus driver (not included) |
| Made in | USA |
Frequently Asked Questions
What mounts is the Offset M620 Adapter compatible with?
The adapter works with Arisaka Offset Scout Mounts (Picatinny, KeyMod, M-Lok) and Side Scout Mounts (KeyMod, M-Lok, CMR). Picatinny-rail-only mounts are not compatible. You must purchase a compatible mount separately.
What Surefire lights can I use with this adapter?
The Offset M620 Adapter is designed for Surefire M620 Scout lights and Millennium-series lights including the M951, M952, and M962.
What's included with the adapter, and what do I need to provide?
The adapter ships with the screws necessary to attach your light body. You'll need to supply a 1/8" Allen wrench and IP20 TorxPlus driver for installation. The adapter itself does not include a scout mount—you must purchase one separately.
Can I position the light laterally on the rail?
Yes, when used with an Offset Scout Mount, the M620 Adapter allows lateral positioning to shift your light closer or further from the top rail, giving you clearance around front sights and other top-rail-mounted accessories.

