FBSRA4-BLK : Troy Industries Folding M4 Rear Battle Sight - (Black)
Troy Folding Battle Sights have set a World Standard for design and quality by which all other Back Up Iron Sights are judged. The aperture position remains at the exact same height as the factory sights, with no levers or springs to fumble with. Stainless steel cross locking system ensures your sights will remain up and zeroed in the most extreme combat conditions. To fold simply press the release button located on the left side of the sight. Troy Sights feature a zero-canting attachment system for use on all military and aftermarket receivers. Each click equals .50 MOA of adjustment. Made in USA.

Troy Folding Rear Battle Sight Features:
• First Choice of Special Operations
• Protected Robust Adjustment Wheel
• 0.460 Low Folded Profile
• Dual Same Plane Apertures
• Windage Adjustment with Coin Slot
• Locks in Upright Position
  
  Troy Folding Rear Battle Sight Specs:
• Material: T6 Aircraft Aluminum & Stainless
• Finish: Type III Hard Coat Anodized w/Teflon - Black
• Windage (per click @100yds): .50" MOA
• Large Aperture: .200"
• Small Aperture: .100"
• Folded Height: .0460"
• Weight: 1.7 oz.