The Leapers UTG MNT-755/MNT-955 combo kit is the new gen super slim flip-up front and rear sight for any rifle platform and other long gun applications equipped with weaver / picatinny rails. This UTG low profile flip-up sight kit is designed to match hand guard or high profile picatinny rail gas blocks. Low profile flip-up sights are precision machined from aircraft grade aluminum with matte black hard coat anodized. 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. Front sight post is elevation adjustable with standard 4-prong front sight adjustment tool. Complete with dual aiming apertures that are ideal for moving target engagements and limited visibility or normal firing situations. Low profile 3mm locking bolt and mounting deck securely attaches to any weaver / picatinny rail. Designed to match MNT-955 new gen super slim flip-up rear sight on same level plane applications, either directly on handguard or on a high profile picatinny rail gas block.Specifications Material: Steel/Aluminum Weight: 1.3 oz Pieces: 1 Rail Type: Picatinny/Weaver Length: 1.24 inch Width: 1.30 inch Height: 1.8 inchIncluded Items UTG Low Profile Flip-up Front Sight UTG Low Profile Flip-up Rear Sight UTG Allen Wrench (2) UTG Lifetime Warranty Circuit City 6x7" Microfiber Cloth (3).