Wheeler Engineering 156-213 AR15 Bore Guide

Wheeler 156213 AR-15 Bore Guide 1 223 Remington One Size Fits All The AR-15 Bore Guide is precision CNC-machined aluminum with a durableanodized finish. It fits securely in any AR-15 upper and can be retained inplace by closing the dust cover on the upper which engages a groove in theguide. The bore guide also has chemical-resistant O-rings for retention inuppers without dust covers. It works well with .223 and .204 extendinginside the chamber to prevent solvent from leaking into the action. As