The Vapor cantilever MSR mount is perfect for someone looking to get an affordable US-made one-piece scope mount for their MSR AR-style rifle. The cantilever design gives you the eye relief you need for modern rifle scopes and is a perfect scope mount for a low-power variable optic. 

Our Vapor line of mounts was developed and engineered to provide you with a solid and economical mounting solution that outperforms other mounts in their class.

• Time-tested designs
• Easy to install
• Field proven performance
• Lightweight aluminum
• Lifetime warranty
• Designed and Made in USA

30mm fits: AR-15, M-4, SR-25, LR308, PTR-91, and any other MSR with a Picatinny rail that is at least 2.5 inches long

1in fits: AR-15, M-4, SR-25, LR308, PTR-91, and any other MSR with a Picatinny rail that is at least 2.75 inches long. For scopes with 1 inch tube diameter.