Image unavailable
Ar-15 .22lr S&W M&P(TM) 15-22 Clip On Magazine Adapter - Ar-15 .22lr S&W M&P 15-22 Clip-On Magazine Adapter
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$7.99
View on Brownells
You'll be taken to Brownells to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: 100042915
Overview
This clip-on magazine shim is designed to help S&W 15-22 magazines fit a Mil-Spec AR-15 lower receiver by taking up slack in the mag well. It installs and removes easily, and it lets you use standard 15-22 magazines without modifying them. When paired with the Catch22 V1 or V2, it is intended to support true last-round-hold-open functionality, making it a practical option for rimfire AR setups and compatible platforms such as the Kriss Defiance DMK22.
Why Hunters Choose the Ar Catch22
Clips Onto
Mil-Spec AR-15 lower receiver for
Shims S&w
15-22 magazines to take up
Installs Removes
Easily without modification to the
Supports True
Catch22 V1 or V2
Allows Use
Of S&W 15-22 magazines in
Key Features
- Clip-on magazine shim for Mil-Spec AR-15 lower receivers.
- Helps take up slack in the magazine well for S&W 15-22 magazines.
- Installs and removes easily without modification to the magazine.
- Designed for use with standard S&W 15-22 magazines in an AR.
- Works with Catch22 V1 or V2 for last-round-hold-open functionality.
- Can be used with Kriss Defiance DMK22 setups that already include a bolt catch.
Best Used For
- AR-15 owners using S&W 15-22 magazines and wanting a quick, no-modification fit solution.
- Shooters setting up a Mil-Spec AR-15 lower for .22LR magazine compatibility.
- Users of Catch22 V1 or V2 seeking true last-round-hold-open functionality with 15-22 magazines.
- Kriss Defiance DMK22 owners who want to use S&W 15-22 magazines instead of Kriss magazines.
Specifications
| Alternative Magazine Use | Allows use of S&W 15-22 magazines instead of Kriss magazines |
|---|---|
| Compatibility | Mil-Spec AR-15 lower receiver |
| Compatible Magazine | S&W 15-22 magazines |
| Function | Shims magazine fit in the mag well |
| Installation | Clip-on; easy to install and remove |
| Last Round Hold Open Functionality | True last-round-hold-open functionality with Catch22 V1 or V2 |
| Modification Required | No |
| Product Type | Clip-On Magazine Adapter |
| Use With | Kriss Defiance DMK22 |
Pros
- Clips onto a Mil-Spec AR-15 lower receiver for quick installation
- Shims S&W 15-22 magazines to take up mag well slack
- Installs and removes easily without modification to the magazine
- Supports true last-round-hold-open functionality with Catch22 V1 or V2
- Allows use of S&W 15-22 magazines in compatible AR setups
Considerations & Trade-offs
- Designed for Mil-Spec AR-15 lower receivers, so it is not a universal fit for every lower or setup.
- Its purpose is to shim S&W 15-22 magazines and take up mag-well slack, so it is a compatibility accessory rather than a standalone magazine solution.
- The description ties true last-round-hold-open functionality to use with the Catch22 V1 or V2, so results depend on the rest of the system being set up for that function.
- It is intended for use with standard S&W 15-22 magazines without modification, which means it is specific to that magazine pattern rather than a broader .22LR magazine adapter.
Suggested Comparisons
- AR-15 .22 LR magazine adapters
- Magazine shims for rifle lowers
- .22 LR training rifle accessories
- Last-round-hold-open magazine solutions
Suggested Accessories
- Magazine adapter
- Magazine shim
- AR-15 accessory
- .22 LR magazine accessory
Frequently Asked Questions
What does this magazine adapter do?
It is a clip-on magazine shim that fits onto a Mil-Spec AR-15 lower receiver to take up slack in the mag well when using S&W M&P 15-22 magazines.
Do I need to modify my S&W 15-22 magazines to use this adapter?
No. The product description says it allows you to use standard S&W 15-22 magazines in your AR without any modification.
Is this adapter easy to install and remove?
Yes. The description states that the clip is easy to install and remove.
Will this work with Catch22 V1 or V2 for last-round hold-open?
The description says the 15-22 magazine adapters work with the Catch22 V1 or V2 to provide true last-round-hold-open functionality.
Can it be used with a Kriss Defiance DMK22?
Yes. The description says that if you are using a Kriss Defiance DMK22 with a bolt catch, you can use these adapters to use 15-22 magazines instead of Kriss magazines.