Product DescriptionThe ProShot "The Stopper" Adjustable Bore Guide (PSTBG3) is engineered to protect your boltaction rifle during cleaning. Designed for .303 to .375 caliber rifles and compatible with both short and long actions, this guide centers your cleaning rod, shields the bore throat, and prevents solvent and fouling from flowing back into the action. Built from aircraftgrade anodized aluminum with chemicalresistant Delrin tips and ends, it features a secure brass pin and a length adjustment to match your action precisely. Compatible with popular actions including Remington 700/40X series, Ruger Model 77, Winchester 70, Savage 110, Mauser 98, Enfield 1917, Kimber 89, Browning ABolt, and more. Made in the USA.Product Highlights Adjustable bore guide for .303-.375 caliber boltaction rifles (short and long actions) Protects bore throat and keeps solvents/fouling out of the action Aircraftgrade anodized aluminum body with chemicalresistant Delrin tips Brass pin and solid sleeve design for longterm durability Compatible with many popular actions: Remington, Ruger, Winchester, Savage, Mauser, Enfield, Kimber, Browning, and more Specs Caliber Range: .303-.375 Action Compatibility: Short or Long bolt actions Construction: Aircraftgrade anodized aluminum with Delrin tips and ends; brass pin Notable Compatibility: Remington 700/40X/78/722/725/788/XP100/Model 7/600/660; Ruger Model 77; Winchester 70/54/56; Savage 110/112V; Mauser 98; Enfield 1917; Hart; Stolle; Kimber 89; Browning ABolt; Dakota Country of Manufacture: USA UPC: 709779600335 Manufacturer Part Number: PSTBG3 Brand: ProShot 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.