OPSol Mini Clip 2.0 Flex Minishell Adapter for Mossberg 500/590, Shockwave & Maverick 88 - Durable Polymer Construction
- Capacity-Rounds:
- 1
- Firearm Group:
- Shotgun
- Firearm Make Fit:
- Mossberg
- Caliber-Gauge:
- 12 Gauge
- Finish-Color:
- Black
- Model:
- Mini-Clip
- Material:
- Polymer
- Model Fit:
- 500
The OPSol Mini Clip 2.0 Flex minishell adapter is a quick-swap solution for Mossberg 500, 590, 590A1, Shockwave, and Maverick 88 shooters who want to run shorter shotshell ammunition. Drop it into the magazine well opening beneath your receiver, and you'll be cycling 1.75-inch minishells reliably—then pull it out in seconds if you need to switch back to full-length rounds. It's a straightforward, durable polymer fix that keeps your shotgun versatile without gunsmithing or permanent modifications.
Minishell adapters solve a real problem for 12-gauge owners: reduced recoil and faster target acquisition on the range or in the field, without buying a second gun. The 2.0 Flex design is built tough enough for serious use, yet simple enough that you'll actually use it. Whether you're working through duty-style drills, hunting, or just shooting flatter patterns with lighter loads, this adapter keeps your platform flexible.
Installation is tool-free. Drop it in, load your minishells, and shoot. Remove it just as easily when you want to return to standard 2.75-inch or 3-inch ammunition. No permanent changes to your shotgun, no guesswork—just immediate access to an entirely different shooting experience on the same platform.
Key Features
- Quick-swap design—install and remove in seconds without tools
- Enables reliable feeding of 1.75-inch minishells in Mossberg 500/590 series and Shockwave models
- Durable polymer construction built for repeated use
- Maintains shotgun versatility—switch between minishells and standard loads instantly
- Fits Mossberg 500, 590, 590A1, Shockwave, and Maverick 88 12-gauge shotguns
Specifications
| Manufacturer | OPSol Texas |
| Adapter Type | Minishell Clip 2.0 Flex |
| Gauge | 12-gauge |
| Shell Length Supported | 1.75-inch minishells |
| Material | Durable polymer |
| Compatible Models | Mossberg 500, 590, 590A1, Shockwave, Maverick 88 |
| Installation | Tool-free, magazine well mount |
Frequently Asked Questions
Will this minishell adapter work with my Mossberg 500 or Maverick 88?
Yes. The OPSol Mini Clip 2.0 Flex is designed to fit Mossberg 500, 590, 590A1, Shockwave, and Maverick 88 12-gauge shotguns. It installs in the magazine well opening beneath your receiver.
Can I switch back to full-length shotshells after using this adapter?
Absolutely. Simply remove the clip—it takes seconds and requires no tools. You can then load and fire standard 2.75-inch or 3-inch 12-gauge shells. The adapter is fully removable and non-permanent.
What shell length does this adapter support?
The OPSol Mini Clip 2.0 Flex is designed for reliable cycling of 1.75-inch minishells. It enables your Mossberg or Maverick to feed these shorter loads reliably from the magazine.
Do I need any tools to install this minishell adapter?
No. The adapter installs tool-free into the magazine well opening. Drop it in and you're ready to shoot minishells; remove it just as easily when you want to return to standard ammunition.

