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Loading magazines by hand gets old fast, especially when you're running through ammo at the range or prepping for a day in the field. The ADCO ST4 Super Thumb Extended Capacity Mag Loader for Ruger 10/22 takes the strain out of loading, letting you focus on shooting instead of fighting with your thumbs. If you run a 10/22 with extended-capacity magazines, this polymer loader is designed to make the job faster and easier.
The Super Thumb design works by using leverage to compress the magazine spring, so feeding rounds in becomes a smooth, low-effort motion rather than a thumb-numbing chore. Black polymer construction keeps it lightweight and durable enough for regular range use, and the design is tailored specifically for 10/22 extended magazines, so it fits the job right.
Whether you're a competitive rimfire shooter, a varmint hunter burning through bulk ammo, or just someone who appreciates not having sore thumbs after a long session, a dedicated mag loader pays for itself in comfort and speed. The ST4 is a simple tool, but it's one of those accessories that makes your time at the range noticeably more enjoyable.
| Brand | ADCO |
| Model | ST4 Super Thumb |
| Type | Magazine Loader |
| Firearm Fit | Ruger 10/22 |
| Magazine Compatibility | 10/22 Extended Capacity Magazines |
| Caliber | .22 LR |
| Material | Polymer |
| Finish | Black |
The ST4 Super Thumb is designed for 10/22 extended-capacity magazines. Check your magazine specifications before purchasing to ensure compatibility.
The ST4 is designed for .22 LR ammunition used in the Ruger 10/22 platform.
A dedicated mag loader uses leverage to compress the magazine spring with minimal effort, reducing hand and thumb fatigue during extended loading sessions at the range or in the field.
SKU: 115767909 • Width: 2.5in • Height: 1.8in • Depth: 3.7in • Weight: 0.19oz
