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40 Degree M-Lok To M-Lok Offset Adapter - 40 Degree Offset M-Lok To M-Lok Adapter
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$45.00
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SKU: 430104516
Overview
This adapter adds a 40-degree offset set of three half M-Lok slots, giving shooters a practical way to place accessories where standard handguard slot positions are limited. It is well suited for setups that need a thumb-accessible switch mount near the top rail or a canted grip arrangement along the lower rail. On handguards without 1:30 and 10:30 slot positions, it offers a straightforward mounting option without changing the overall layout of the rifle. At 2.2 inches long, it stays compact while expanding placement choices for a more tailored setup.
Why Hunters Choose the Arisaka Defense
Three Half
M-Lok slots at a 40-degree
Useful Handguards
Without 1:30 and 10:30 M-Lok
Supports Thumb-accessible
Placement of a Unity Hot
Can Be
A vertical grip for angled
Compact 2.2-inch
Length keeps the adapter low-profile
Key Features
- Provides three half M-Lok slots at a 40-degree offset.
- Designed for handguards without M-Lok slots at the 1:30 and 10:30 positions.
- Can help mount a Unity Hot Button beside the top rail for thumb activation.
- May be used on 6 o'clock M-Lok slots with a vertical grip for angled positioning.
- Offers added clearance around drum magazines in compatible setups.
- Factory part number: MMA40; length listed as 2.2 inches.
Best Used For
- For shooters needing 40-degree offset M-Lok placement on handguards without 1:30 or 10:30 slots.
- For mounting a Unity Hot Button where thumb activation from the top rail is preferred.
- For users configuring a 6 o'clock grip setup with a vertical grip and added side clearance.
- For rifle setups requiring compact accessory placement without relying on direct top-rail mounting.
Specifications
| Compatibility | M-Lok to M-Lok |
|---|---|
| Factory Part | MMA40 |
| Length | 2.2" |
| M Lok Slots | three half M-Lok slots |
| Offset Angle | 40 degrees |
| Use Cases | mounting a Unity Hot Button; use with a vertical grip like VFG-M |
Pros
- Provides three half M-Lok slots at a 40-degree offset.
- Useful for handguards without 1:30 and 10:30 M-Lok positions.
- Supports thumb-accessible placement of a Unity Hot Button.
- Can be used with a vertical grip for angled grip positioning.
- Compact 2.2-inch length keeps the adapter low-profile.
Considerations & Trade-offs
- Adds a 40-degree offset rather than a straight-on mounting position, so it is intended for specific accessory placement rather than general-purpose rail extension.
- Designed around handguards that lack M-Lok slots at the 1:30 and 10:30 positions, so its usefulness depends on the layout of the rifle or handguard.
- Provides three half M-Lok slots, which may be enough for the intended accessory setups but is not a full-length mounting surface.
- At 2.2" long, it is a compact adapter, so accessory placement is more specialized and may require checking fit with the chosen light, switch, or grip setup.
Suggested Comparisons
- M-LOK rail accessories
- Offset accessory mounts
- Vertical foregrips and grip adapters
Suggested Accessories
- M-LOK weapon light mount
- Pressure switch mount
- Vertical grip
- Handguard accessory mount
Frequently Asked Questions
What is the Arisaka M-Lok to M-Lok Adapter used for?
It provides a set of three half M-Lok slots at a 40-degree offset. The description says it is especially useful for handguards that do not have M-Lok slots at the 1:30 and 10:30 clock positions.
Can this adapter be used to mount a Unity Hot Button?
Yes. The product description says it is perfect for mounting a Unity Hot Button to one side of the top rail, allowing thumb activation.
Can it be used with a vertical grip?
Yes. The description says it can be used on the 6 o'clock M-Lok slots with a vertical grip like the VFG-M to create a grip that angles out to one side.
What clearance benefit does the adapter provide in that grip setup?
The source says that angled grip setup can provide more clearance around drum magazines or be used for a light machine gun. No additional performance details are provided.
What size or part number information is provided?
The listed factory part number is MMA40, and the provided length is 2.2 inches. No other dimensions are given in the source data.