CNC Machined 6061-T6 Aluminum and Steel Construction Finished in Matte Black Anodize. Standard Elevation Adjustable A2 Front Sight Post. Posi-lock Push Button Automatically Deploys the Sprint-loaded Sight and Prevents Sight from Collapsing when Deployed. Utilizes a Single Locking Torx Screw and Squared Recoil Stops for a Secure Zero Hold and Return to Zero on Picatinny Rails. Fold Over Design Uses Minimal Rail Space with Low Profile .66 in Stowed Height. Lightweight at 1.2 oz.. Matching Rear Sight: MNT-957 ACCU-SYNC« Rear Sight on Same Level Plane Applications Either Directly on Handguard or on a High Profile Picatinny Rail Gas Block