Description
If you own a Thompson Center Icon rifle, finding a reliable replacement magazine can be tough since Icon production ended years ago. This factory replacement magazine is built to the same exacting standards as the original, maintaining perfect fit and feeding reliability across multiple calibers.
The magazine holds three rounds in a single-stack design that keeps each cartridge perfectly aligned for flawless feeding. Its compact, flush-fit profile makes it ideal for hunting or range work, and the low-profile footprint doesn't add unnecessary bulk to your rifle. Made from durable polymer construction, this mag is strong, lightweight, and less prone to damage than older steel designs.
Thompson Center Icon Multi-Fit Magazine Compatibility
This magazine works across several popular short-action calibers, including .243 Win, 6.5 Creedmoor, .308 Win, and 7mm-08. That multi-fit capability means if you own one of these Icon rifles, a single magazine type covers your bases. The 3+1 capacity (three in magazine, one in chamber) has been the standard for Icon medium-action rifles since the beginning.
Built to Original Specifications
Thompson Center produced this magazine to maintain the exact tolerances and feed characteristics of the factory original. It's a straightforward, no-frills spare that gets the job done and integrates seamlessly with Icon platforms. For Icon owners, having a backup magazine or two on hand makes sense, especially given how hard they are to find on the secondary market.
Key Specifications
- Manufacturer: Thompson Center
- Manufacturer Part Number: 4140R
- UPC: 810180300308
- Model: Icon
- Caliber Compatibility: .243 Winchester, 6.5 Creedmoor, .308 Winchester, 7mm-08
- Capacity: 3 rounds
- Magazine Feed Type: Single-stack detachable box
- Material: Polymer
- Finish: Black
- Application: Centerfire rifle
- Dimensions: 1.55 x 2.90 x 6.00 inches
- Weight: 0.149 lbs
What’s Included
- 1x Thompson Center Icon 3-round magazine
Frequently Asked Questions
Will this Icon magazine work in my Thompson Center Venture or Dimension rifle?
No, this is specifically designed for the Icon platform. Venture and Dimension rifles use different magazine designs and bolt configurations. Always check your rifle's manual to confirm magazine compatibility before purchasing.
What does the 3+1 capacity mean?
The magazine holds 3 rounds, plus you can have 1 additional round in the chamber of your rifle, giving you a total of 4 available rounds. This has been standard for Icon medium-action rifles from the beginning.
Can I use this magazine in multiple calibers without swapping anything?
Yes. This magazine is multi-fit for .243 Winchester, 6.5 Creedmoor, .308 Winchester, and 7mm-08 in Icon rifles. You don't need separate magazines for each caliber if your Icon rifle is chambered in one of these rounds.
Is this a genuine Thompson Center factory magazine?
Yes, this is a Thompson Center factory replacement magazine manufactured to original OEM specifications to preserve proper fit and feeding characteristics with Icon rifles.





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