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This Folding Front BUIS (Back-Up Iron Sight) is compatible with MIL-spec height front AR sights. It locks down, and can be deployed with the push of a button. It is perfect for M4/AR-15 platforms with quick detach optics mounts.
Optimized for AR platform
Compatible with MIL-spec height front AR sights
Single hybrid aperture for simplicity
Locks into stowed position with push-button-actuated spring deployment
Aluminum sight blade/aperture and polymer base for optimal strength-to-weight ratio
Blackhawk Folding Rear Buis (Back-Up Iron Sight)
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WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.