These Thompson Center barrels are factory replacements for the Dimension modular rifle system. The Dimension rifle system allows the shooter to determine what caliber is needed for the current situation and then switch components to create the most suitable platform. This allows one rifle to take game ranging from prairie dogs to moose, and any species in between. Each barrel is stamped with the letter corresponding to the series of parts that coincide with that particular caliber. The user simply chooses the bolt and magazine with the same letter. Use the Thompson Center Torque Tool, product 169204, to tighten the barrel. Once assembled, the rifle is ready for the next hunting adventure.
Reference this chart to select the correct components:
Series "A"- 204 Ruger, 223 Remington
Series "B"- 22-250 Remington, 243 Winchester, 7mm-08 Remington, 308 Winchester
Series "C"- 270 Winchester, 30-06 Springfield
Series "D"- 7mm Remington Magnum, 300 Winchester Magnum
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