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The OPSol Texas Mini-Clip solves a real problem for Mossberg pump shotgun owners. Those 1.75-inch mini shells deliver noticeably less recoil, making them great for practice and less painful shooting sessions. But here's the thing—they don't naturally feed right in shotguns built for full-sized shells. This simple polymer insert sits in your receiver and creates a snug path for the shorter rounds, so they cycle like they're supposed to.
What makes this worth the shelf space is how easy it works. Install takes maybe five seconds. No gunsmithing, no modifications, nothing permanent. Just compress the two rear tabs, slip it into the loading port at an angle, and let the front rotate into place. To remove it, reach through the ejection port with your thumb and pop it out. Same five seconds, completely reversible.
Pump actions struggle with mini shells because the shorter length creates too much dead space. The round rattles around during cycling and risks flipping. This adapter fills that space, so the shell stays seated and oriented correctly. Real-world testing shows reliable feeding with zero jams when used properly. You're not fighting the shotgun anymore—it just works.
Where mini shells really shine is filling more room in the tube. A Mossberg 500 or 590 normally holds five or six full-sized rounds. Swap them for 1.75-inch mini shells with this adapter in place, and you're looking at 8-10 rounds in the same magazine tube. That's a serious capacity bump for the same gun. When you're done, pull out the adapter and you're back to shooting standard 2.75-inch or 3-inch shells.
No. The Mini-Clip installs completely tool-free. Just compress the rear tabs slightly, insert it into the loading port at an angle, and rotate the front down into place. Removal is just as simple—pop your thumb through the ejection port and push it out. Both take about five seconds.
The adapter must be removed before using standard 2.75-inch or 3-inch shells. It's designed specifically for 1.75-inch mini shells. The good news is removal is fast and the adapter lives in a pocket until you need it again.
A standard Mossberg 500 or 590 holds about 5-6 full-sized shells. With this adapter and 1.75-inch mini shells, that same tube holds 8-10 rounds depending on the exact model. That's nearly double the capacity without changing anything else on the gun.
The adapter is made from polymer and holds tight when installed. Most users report it stays put reliably and handles repeated install/remove cycles well, though some prefer taping it in with electrical tape for rough conditions or heavy brush work.
| UPC | 736902383995 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | MINICLIP |
| Brand Fit | Mossberg |
| Caliber/Gauge | 12 Gauge |
| Capacity | 1rd |
| Length | 3.3000 |
| Model | |
| Model Fit | 500 |
| Product Type | Detachable |
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