Are there available rifling buttons for these platforms? I can’t find them anywhere. Even hammerbutton does not have them. Or is there some rifling button with specific characteristics that work, but they are not specifically labelled as AR15/M4?

    • majorbullOPEnglish
      1·
      2 months ago

      Thank you man! But will this work for 5.56?

      • KopsisEnglish
        4·
        2 months ago

        There’s no difference in the rifling. The differences between 5.56 NATO and .223 Remington are all in the chamber dimensions.

        • majorbullOPEnglish
          1·
          2 months ago

          Thank you. Does this mean that you need a different chamber reamer for these two?

          • KopsisEnglish
            3·
            2 months ago

            The roughing reamers can be the same but the finish reamers are different.

            • majorbullOPEnglish
              1·
              2 months ago

              Once again, thank you! I do not know the difference between these two. But that website sells “chamber reamers”. So if I buy the one equivalent for this rifling button, will I be ok?

              • KopsisEnglish
                2·
                2 months ago

                Bottleneck cartridges usually need two reamers. Unlike straight-wall pistol cartridges, rifle cartridges require opening up the chamber to a much larger diameter than the bore. A rough reamer is used to aggressively remove material to get the chamber near the correct size and then a finish reamer is used lightly cut the chamber to the final dimensions. The same rough reamer is often used for both .223 Rem and 5.56 NATO (and .223 Wylde). The finish reamer will be specific to which chamber dimensions you want. Either way you will need two reamers.

                • majorbullOPEnglish
                  1·
                  1 month ago

                  Thanks a lot for the detailed answer. Hammerbutton only sells rifling buttons. So what can I do in this situation? Is it possible to find the reamers elsewhere? Or is it possible to machine them on my own?