Bravo's airsoft 4X Magnifier with push button Flip-To-Side 20mm mount. FTS mount fits all weaver/picatinny style 20mm rails and can be configured to flip to the left or right. This is not a scope and does not have a reticle. It is designed as a magnifier to work in tandem with another scope, red dot or holo sight. It can, however, be used as a gun mounted monocular!