Description: Universal Bore Guide offers an easier and safer clean by aiding in the alignment of your cleaning rod with the barrel of your firearm. Proper rod alignment prevents bowing and bending which can damage your bore. The built-in solvent port reduces the chance of spilling and wasting solvent which could ruin the finish of your firearm.This Universal Bore Guide includes a collar designed for MSR/AR style rifles which creates a tighter fit and additional support of the upper receiver while cleaning your firearms. Features: Protects chamber and bore from damage Aligns rod with barrel for easier cleaning Reduces solvent leakage into action Fits most bolt action and MSR/AR style rifles Solvent port protects firearms finish from chemicals Thumbscrew collar lock for securing into bolt position Package Includes: 1x 22.8 cm( L ) Plastic Rod 1x Dia2.49cm Ring 1x Dia1.72 Ring 1x Metal Rod 1x Small Calibre 1x Medium Calibre 1x Big Calibre Please Note: Ensure your firearm is unloaded Install appropriate tip for your rifle(Check size guide) Remove bolt from rifle Insert guide into action Adjust collar so thumb screw fits into bolt closed position of stock Wipe clean after use ***Please Note rifle & scope not included***