Unsure which Arca Rail will fit? Print this, cut out the tool, and let us know which radius would be the best fit for your stock. Use the ruler as a guide to verify the document printed to scale. If it doesn't measure 1", or 6" double check "Actual Size" was used in print settings. https://cdn.shopify.com/s/files/1/0652/3630/4081/files/Buff_Stuff_Radius_Check.PDF?v=1743362515