Wheeler Engineering 661120772095 Delta Series 300 Blackout Bore Guide

The AR-15 300 AAC Blackout Bore Guide works on any 30 caliber AR-15. 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 intothe action. A solvent port is conveniently located to the rear of the guide which extends out of theupper making it easily accessible during cleaning. Made of precision CNC machined aluminum with a durable anodizedfinish.