Pstl. Bore Cleaning Brush 40 Caliber / 10mm 8 x 32 Thread Nylon Pack of 3 New 10NP The Pro-Shot Nylon Bore Cleaning Brush is recommended by some pistol manufacturers for use with their barrels. Made in the USA ! Core Material: Brass Core End: Looped Bristle Material: Nylon Type Cal / Gauge Thread Type Thread Male / Female Rfl. / Pstl. 17 to 20 Calr Commercial 5 x 40 Male Rfl. / Pstl. 22 to 50 Cal Commercial 8 x 32 Male Shtgn. All Commercial 5/16 x 27 Male ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We are a factory direct dealer of Pro-Shot Products parts and accessories. All of our products are BRAND NEW and contain all of the parts, materials and documentation. You can expect and will receive prompt delivery of your item . We will ship your order within one day . We are unable to accept returns on used, fitted, or altered parts. Returns must be in new, unused condition and in their original packaging.