Pro-Shot AR-15 Bore Guide

AR-15 Bore Cleaning Guide AR Style Bore Guide with O-Ring and Solvent Port. The AR Style Bore Guide with O-Ring fits in place of the bolt carrier group assembly during cleaning, centering the cleaning rod and preventing damage to the chamber or muzzle. The O-Ring seal at the breech keeps solvents from entering the upper receiver and trigger mechanism while also protecting the action from chemicals. The Solvent Port allows for quick and easy application of CLP/Cleaner. This AR15/M16 style bore guide is compatible with all AR15/M16/M4 platform rifles and works for 5.56mm & .223 Cal. variants. The guide extends 63mm from the rear of the upper receiver, so consider this length when selecting your cleaning rod. For example, with an AR-15 featuring a 16" barrel, without a flash suppressor or muzzle brake, the rod should be approximately 65cm / 25.6" in length to protrude just from the muzzle.