We sell a variety of calibers and thread sizes to fit almost all ramrods and range rods. Options: 32 Cal. 8/32 Brass 36 Cal. 8/32 Stainless Steel 45 Cal. 10/32 Brass 45 Cal. 8/32 Brass 50 Cal. 5/16x27 Brass 50 Cal. 10/32 Brass 50 Cal. 8/32 Brass 54 Cal. 5/16x27 Nylon 54 Cal. 10/32 Brass 54 Cal. 5/16x27 Brass 54 Cal. 8/32 Brass 58 Cal. 10/32 Brass 58 Cal. 5/16x27 Brass 58 Cal. 5/16/27 Stainless Steel 58 Cal. 5/16x24 Brass 58 Cal. 8/32 Brass 69 Cal. 10/32 Brass 69 Cal. 5/16x27 Brass