The Real Avid Bore-Max Smart-Fit Bore Guide is a precision cleaning tool that prioritizes bore protection and simplifies your cleaning routine. With a spring-loaded tube for consistent chamber sealing, contoured interchangeable tips for improved alignment and action-locking keys for secure fitment, this bore guide is the ultimate solution for centerfire rifles from .223 to .375 caliber. Experience worry-free cleaning and long-lasting durability with the Smart-Fit Bore Guide. Trust Real Avid for superior quality and innovation in bore care. Groundbreaking precision cleaning tool: The Real Avid Bore-Max Smart-Fit Bore Guide revolutionizes bore protection and simplifies cleaning routines. Consistent chamber sealing: The spring-loaded tube prevents chemical leaks into the action, ensuring the safety and performance of your firearm. Interchangeable contoured tips: Achieve optimal alignment and improved bore protection with three different tip sizes for a precise fit. Secure fit with action-locking keys: Snugly fits various firearm platforms, preventing movement and instability during cleaning. Versatile compatibility: Suitable for centerfire rifles with calibers ranging from .223 to .375, catering to a wide range of firearms. Durable construction: Anodized aluminum tube ensures long-lasting reliability, enduring regular cleaning routines. Setting a new standard: The Smart-Fit Bore Guide provides consistent chamber sealing, enhanced bore protection and stability during cleaning.