Clean your weapon with precision using the Real Avid Smart-Fit Bore Guide. The spring-loader locks in place to ensure a consistent chamber sealing with 0 movement through your bore, and the contoured tips sit deep in the chamber to improve bore protection. An anodized aluminum tube is designed for long-lasting durability, and the bore-specific tips offer damage-free, precise fitment on centerfire rifles from .222-.375 caliber.