Delta Series 300 Blackout Bore Guide

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The AR-15 & AR-10/LR Bore Guides are precision CNC machined aluminum with a durable anodized finish. They fit securely in any AR-15 or LR/308 upper and can be retained in place by closing the dust cover on the upper which engages a groove in the guide. The bore guides also have chemical resistant O-rings for retention in uppers without dust covers. The AR-15 Bore Guide works well with .223 and .204, while the AR-10 works well on .308. The NEW 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. AR-15 Bore Guide Inner tube diameter .250 (not intended for 6.8mm jag)


Protects chamber & bore from damage
Ensures proper rod alignment for easier cleaning
Reduces solvent leakage into guns action
Anodized aluminum for durability
Integrated solvent port
Secures in place with dust cover engagement
AR-15 Bore Guide fits .223 and .204
LR/308 Bore Guide fits .308
300 AAC Blackout Bore Guide fits all AR-15 Calibers up to .30 Cal. 

Item#: 9-255884