UTG Pro Top Mounted Deployable Rear Sight Black. These AR 15 Parts by UTG Pro are equipped with a dual aiming aperture that not only boosts your accuracy during normal shooting but is also ideal for moving target engagements as well as limited visibility shooting environments. Easily installed on a picatinny rail equipped AR platform the Leapers UTG Flip-Up Dual Aiming Sight guarantees zero retention with a posi-lock plunger coupled with spring activated ball bearings. Make your rear sight as important as your optic with the Leapers UTG Dual Aiming Rear Sight for AR. Specifications for UTG Pro Top Mounted Deployable Rear Sight: Manufacturer: UTG Pro Color: Black Condition: New Rear Aperture Size: 0.078 - 0.198 in 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: Aircraft Grade Aluminum 6061-T6 Aluminum/Steel Front Material: Aluminum Height: 1.8 in Length: 1.7 in Gun Type: Rifle Hand: Ambidextrous Mount Type: Weaver Width Range: 1.3 in Weight Range: 1.6 oz Attachment Type: Picatinny Weaver Features of Leapers UTG Low Profile Dual Aiming Rear Sight LP-IRN-MNT-955: Super Slim Flip-up Rear Sight for the AR Platform and Other Long Gun Applications Equipped with Picatinny Rail Precision Machined from Aircraft Grade Aluminum with Black Anodize Spring Loaded Posi-Lock Design with Side Plunger Release for Positive Flipping/Folding; Compress Plunger to Unlock and Fold Down When Not in Use Robust Posi-lock Plunger Coupled with Spring Activated Ball Bearing Guarantees Zero Retention Complete with Dual Aiming Apertures Ideal for Moving Target Engagements and Limited Visibility or Normal Firing Situations Low Profile 3mm Locking Bolt and Mounting Deck Securely Attaches to any Picatinny Rail Designed to Match MNT-755 New Gen Super Slim Flip-up Front Sight on Same Level Plane Applications NOTE: We recommend to tighten the side plate screw with torque value of about 25 inch-lb. Package Contents: Leapers UTG Top Mounted Deployable Rear Sight Allen Wrench 3mm What firearm models does the manufacturer say UTG Pro Top Mounted Deployable Rear Sight is compatible with? The manufacturer says that UTG Pro Top Mounted Deployable Rear Sight is compatible with AR-15UTG Pro MNT-955: Top Mounted Deployable Rear Sight Black