Product DescriptionBuilt for frequent use by competition shooters, the Pro-Shot Chamber Brush delivers dependable cleaning performance for .17-.22 rimfire and .223 centerfire rifle chambers. Featuring durable bronze bristles wrapped around a brass core with a looped end, this brush scrubs fouling without damaging your firearm. It uses the American Standard #8-32 thread to pair with most standard cleaning rods and is proudly made in the USA.Product Highlights Bronze bristles with brass core and looped end for long-lasting, safe chamber cleaning American Standard #8-32 thread fits most standard rifle cleaning rods Engineered for competition shooters and frequent cleaning routines Compatible with .223, .17, and .222 caliber rifles (.17-.22 rimfire and .223 centerfire chambers) Made in the USA Specs Caliber Compatibility: .223, .17, .222; .17-.22 rimfire and .223 centerfire rifles Thread Size: American Standard #8-32 Materials: Bronze bristles; brass core; looped end Weight: 0.02 lb Country of Manufacture: USA UPC: 709779100422 Manufacturer Part Number: 223BC Brand: Pro-Shot Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.