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.

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