The rex t1 riser mount is a low profile lightweight t1 mount for ar platforms.Set at the ideal height for an absolute co-witness or lower 1/3 utilizing an additional spacer.The t1 mount is versatile while providing shooters with an excellent option for all t1 compatible optics.With its modular design you are able to mount your optics at your preferred heights.Length: 0.93"Model: T1 Riser MountStyle: Lower 1/3/Absolute Co-WitnessFinish: Flat Dark EarthMaterial: 6061-T6 AluminumPieces: 3Mount Type: Picatinny RailRings Included: No