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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.

Features:

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