- 20 and 28 Ga / .54-.56 Cal. Mop Size
- 100% cotton
- Superior brass core
- 5/16-27 Thread
The PRO-SHOT PRODUCTS 20 and 28 Gauge Shotgun Cleaning Mop (MP20) is 100% cotton and has a brass core. It is made of the highest quality construction possible. This mop can be used for quick cleaning and bore lubrication. Mops are especially excellent when using oil for bore lubrication because they create foaming action that helps in the lubrication process.