The Burris AR-F3 is the simplest, most effective way to mount any FastFire sight on an AR flattop. It allows the FastFire to be mounted at the optimum height, so the red dot can co-witness with flip-up sights. The metal wings protect the lens from impact and unintentional abuse. The lower compartment stores spare battery, open-end wrench and a Torx wrench.
Specifications:

Type	Scope Mount
Model	AR-F3 Mount
Style	1-Piece
Misc	Flattop AR-15
Finish	Black Matte
Material	Steel
Pieces	1
Gun Type	Rifle
Mount Type	Picatinny/Weaver
Length
Rings Included	No
Ring Height
Mount Height