UTG Pro AR Flip-up Front Sight Picatinny Black. 55" Stowed Height Manual Flip-up Sight Tower Locks when Deployed Unlocks via Push Button Weights 1.3 oz. Specifications for UTG Pro AR Flip-up Front Sight: Manufacturer: UTG Pro Color: Black Condition: New Rear Aperture Size: 0.078 - 0.198 in Sight Mounting Orientation: Top Mounted Sight Position: Front Gun Model: Universal AR-15 Gun Make: AR Platform Front Sight Color: Black Rear Sight Color: Front Sight Only Front Post Shape: Square Deployable: Yes Fabric/Material: 6061-T6 Aluminum Front Material: Aluminum Height: 1.8 in Length: 1.24 in Blade Height: 0.55 in Gun Type: Rifle Hand: Ambidextrous Mount Type: Picatinny Attachment Type: Picatinny Country of Origin: USA Features of UTG Pro AR Flip-up Front Sight: Durable Aircraft Aluminum Construction with Reinforced Steel Components Finished in a Durable Matte Black Anodization Designed for the AR Platform and Fits Most Picatinny Rails Utilizes Standard Elevation Adjustable A2 Front Sight Post Manual Flip-up Sight Tower Locks into Place when Deployed Unlocks via Spring-loaded Push Button Low Profile 0.55" Stowed Height Lightweight at 1.3 oz. Package Contents: UTG Pro AR Flip-up Front Sight What firearm models does the manufacturer say UTG Pro AR Flip-up Front Sight is compatible with? The manufacturer says that UTG Pro AR Flip-up Front Sight is compatible with AR-15 UniversalUTG Pro TLUFS55: AR Flip-up Front Sight Picatinny Black