Muzzle-Loaders® Black Powder Revolver Nipples are designed exclusively for the Pietta™ brand with a 6x3/4 thread pitch. These Stainless Steel percussion cap nipples are manufactured from high-grade steel for extended use. Muzzle-Loaders™ offers these nipples in a 6-pack for added value so you can have a few spare nipples on hand when you need them. Muzzle-loaders™ Black Powder Nipples are great for replacing worn nipples. Muzzle-Loaders® #10 Percussion Nipples are designed exclusively for Pietta revolvers with 6 x 3/4 threading. Features Spare or replacement nipples Compatible with all Pietta™ black powder revolvers Stainless steel construction Nipples work with the following Caps (Standard or Magnum) Remington #10 CCI #11 Winchester #11 RWS 1075 Nipples fit the following calibers 36 Caliber 44 Caliber 45 Caliber Nipples work on the following Models 1851 thru 1861 (Pietta, Original Colt or 2nd Gen Colt) 1862 Dance by Pietta LeMat by Pietta