Samson Aluminum Top Mounted Deployable Rear Sight Black. Like all folding sights from Samson the Samson Flip Up Sight locks in both deployed and folded positions. The flip up sights spring mechanism is quite durable and is completely concealed to prevent dirt from fouling the rifle sight. The dual aperture rear BUIS has a conventional large and small aperture. The flip up sight deploys with the large aperture. This Samson rifle sight is very fast for close combat (CQ) and precise for longer range shooting. We stock all the best in weapon accessories from Samson and other leading manufacturers like rifle stocks bipods and more. Our range of gun supplies includes rifle scope mounts scope rings and scope bases including tactical rails scope mounting rings front sights and rear sights. We carry high-powered pistol scopes red dot sights laser sights and tritium night sights. Our list of gun accessories includes carrying cases for gun storage gunsmith tools and more. Everything in our online store is backed by the manufacturer's warranty and our own guarantee of 100percent satisfaction with your purchase Specifications for Samson Aluminum Top Mounted Deployable Iron Sight: Manufacturer: Samson Additional Features: M4 Co-Witness Condition: New Sight Mounting Orientation: Top Mounted Sight Position: Rear Gun Model: AR-15 Gun Make: AR Platform Front Sight Color: REAR SIGHT ONLY Rear Sight Color: Black Deployable: Yes Fabric/Material: 6061 Aluminum Front Material: T-6061 Aluminum Illumination Type: Non-Illuminated Gun Type: Rifle Included Accessories: Standard Illumination Color: None Hand: Ambidextrous Mount Type: Picatinny Attachment Type: Picatinny Features of Samson Flip Up Rear Sights Standard Dual Aperture: Locks when deployed and stored Package Contents: Samson Flip Up Rear Sight Standard Dual Aperture FRS-A2 What firearm models does the manufacturer say Samson Aluminum Top Mounted Deployable Iron Sight is compatible with? The manufacturer says that Samson Aluminum Top Mounted Deployable Iron Sight is compatible with AR-15Samson 02-00030-01: Aluminum Top Mounted Deployable Rear Sight Black