Description
This is the genuine Thompson Center factory replacement magazine built for Icon and Precision Hunter bolt-action rifles. If you shoot 204 Ruger or 223 Remington, this mag delivers the same fit and function as the one that came with your rifle.
Icon Magazine Design & Construction
The magazine uses black polymer construction that's tougher than it sounds. Modern polymer mags hold up better to rough handling than you'd expect, won't dent or ding, and run quieter in the field. The design keeps everything simple with a smooth feeding system and spring follower that won't let you down when it counts. Thompson Center holds these to factory tolerances, so you get consistent performance from mag to mag.
Magazine Performance in the Field
Perfect Pairing with Small-Caliber Rifles
The 3-round capacity works well for the Icon platform. Whether you're running varmint loads or precision ammunition, feeding is reliable through the last round. This is important when you're zeroing a new scope or conducting load development at the range. The magazine seats firmly in the well and ejects cleanly with the press of the catch.
Keep a spare or two on hand. Having backups means you can spend more time shooting and less time loading, and replacement mags ensure you're always ready for range sessions or hunting trips.
Key Specifications
- Manufacturer: Thompson Center
- Model: Icon
- Manufacturer Part Number: 4120R
- UPC: 810180300285
- Caliber: 204 Ruger, 223 Remington
- Capacity: 3 rounds
- Material: Black polymer
- Rifle Compatibility: Thompson Center Icon, Precision Hunter
- Type: Detachable box magazine
- Weight: 0.155 lbs
What’s Included
- 1 Thompson Center Icon magazine
Frequently Asked Questions
Will this Icon magazine work with my Venture or Dimension rifle?
No, this is specifically designed for the Icon and Precision Hunter models. Similar calibers like Venture and Dimension use different magazine designs. Check your rifle's documentation or contact Thompson Center to confirm your correct magazine model.
Can I use this magazine with both 204 Ruger and 223 Remington?
Yes, this single magazine works reliably with both calibers. However, verify that your rifle is chambered in one of these calibers. The magazine is caliber-agnostic but must match your rifle's chamber.
Are these polymer magazines durable for regular use?
Polymer magazines have come a long way and are used on premium rifles. They're stronger than steel when properly designed, quieter in operation, and resist denting. Thompson Center factory mags are built to the same standards as the rifle itself.
Why is a spare Icon magazine worth having?
Spare magazines let you spend more time shooting and less time loading. For range work or load development, having backups means smoother sessions. They're also good insurance since these factory mags aren't always easy to find.





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