Geissele Super Precision CompM5s Optic Mounts 1.93in Black. These mounts are precision machined from a single piece of 7075-T6 high strength aluminum and are available in absolute co-witness and 1.93" height options. This mount uses Geissele's update of the classic nut and bolt method attaching your red dot to your weapon with 1400 pounds of clamping force and features 3 shear lugs for maximun rigidity and superior return to zero. Specifications for Geissele Super Precision CompM5s Optic Mounts: Manufacturer: Geissele Color: Black Gun Model: AR-15 Gun Type: Rifle Fabric/Material: 6061-T6 Aluminum Co-Witness: Absolute Red Dot Sights-Footprint: Not Applicable Optic Cut: Not Applicable Height: 1.93 in Weight: 2.05 oz Package Contents: Geissele Super Precision CompM5s Optic Mounts Geissele 05-1256B: Super Precision CompM5s Optic Mounts 1.93in Black