Check the listing for details. 40 Cal Brass Loading & Cleaning Jag 3/8" 8-32 Flintlock Percussion Muzzleloader. Condition: New. Listed at 7.99 USD. FREE COMBINED SHIPPING when you buy more, so check out my other muzzleloader listings. STOCK UP and SAVE! Go to my store or sellers other items and type in muzzleloader to see more! 1 New 40 Caliber Brass Jag. Load and clean with one jag. For use on 3/8" ramrod with 8-32 threads. We pride ourselves in offering a variety of quality production, custom and aftermarket replacement parts and supplies for black powder builders, shooters and enthusiasts of any level. Free Combined Shipping from the highest shipping cost, all on the same order. If you buy a tang screw with $5 shipping and a barrel with $25 shipping, you will only pay $25 shipping so add patches, flints, screws, springs, jagsit will all ship for $25. If you use the buy it now or auto-pay function, just reach out when you're done shopping and we'll refund accordingly.