Blackhawk Folding Rear Sight (BUIS)


STOCK# 12451

Availability: Limited Quantities


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

Collections: Firearm Accessories

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