Patriot Series Nylon Bristle Brushes are an exclusive design of Pro-Shot! Works for .30 Cal. / .308 / 7.62mm / .300 BLK
Stiff bristles remove fouling but will not damage bore. Heavy duty bore brush is great for heavily fouled barrels.•Stiff heavy duty red, white, and blue nylon bristles.•Will not flatten like standard brass bristles brushes.•Mfg. with solid Brass Core & Coupling.•Stiff Colored bristles resist ammonia and oil-based cleaners.
•Std. American #8-32 Thread
•Made in USA