Wheeler Engineering 777209 Delta Series AR-15 .300 Blackout Bore Guide

The AR-15 300 AAC Blackout Bore Guide works on any 30 caliber AR-15. The nozzle extends inside the chamber to prevent solvent from leaking into the action. A solvent port is conveniently located to the rear of the guide which extends out of the upper making it easily accessible during cleaning. Made of precision CNC machined aluminum with a durable anodized finish.