The Universal Bore Guide Set from Lyman Products (MFG04045) protects both your rifle's chamber and bore by perfectly aligning cleaning rods with the bore axis. This anodized aluminum set includes interchangeable tips covering calibers from .17 up to .416, plus a special adapter sleeve for AR-15 actions. The threaded nozzles prevent the guide from sticking in the chamber, while a machined solvent port allows neat application of cleaner patches. Compatible with Lyman's cleaning rod system and ideal for bolt-action and AR platforms, this guide delivers chamber protection and ease of use. Key Points Protects chamber and bore from rod-induced wear Properly aligns and guides your cleaning rod Fits calibers .17 to .416 with interchangeable tips Includes adapter sleeve for AR15 rifles Fits most centerfire bolt action rifles and AR's Anodized aluminum construction for durability Thread-on nozzles prevent sticking in the chamber Solvent port enables clean patch insertion Precision machined from durable, anodized aluminum, the set comes with interchangeable tips that cover bore sizes from .17 up to .416 and the thread-on nozzles prevent the guide's sticking in the chamber. The guide's specially machined port makes applying solvent to the inserted cleaning patch easier and neater than trying to push a wet patch into the open end of the guide. The Universal Bore Guide Set works with most cleaning rods like Lyman's Universal Cleaning Rod System and Jag and Brush Set. Specifications Material: Precision machined anodized aluminum Caliber Range: .17 through .416 Includes AR15 adapter sleeve UPC: 011516040459 Shipping Weight: Approximately 0.3lb (4.8oz) Part Number: 04045 Usage Context Ideal for hunters, competition shooters, and gunsmiths who clean multiple boltaction or ARstyle rifles. Ensures rod alignment for precise and safe bore care during regular maintenance. Comfort & Fit The guide slides easily and securely into the chamber. Interchangeable tips ensure a snug fit across calibers while the adapter sleeve prevents wobble in AR15 platforms. Technology & Materials Made from rugged, anodized aluminum, the guide resists solvents and corrosion. Threaded nozzles and solvent port design facilitate safe, clean use and rod alignment, protecting both chamber and rifling. The Universal Bore Guide Set (04045) from Lyman Products is a versatile, durable accessory that simplifies rifle cleaning while protecting vital bore components. With broad caliber support and smart design features, it's a must-have for anyone who values precision firearm care.