Scalarworks LEAP/13 Red Dot Sight Mount 1.57in Black. The lightest strongest and most compact quick-detach red dot sight mount possible. The LEAP/13 redefines the standard for mounting your Aimpoint CompM4s footprint compatible optic to your AR-15's Picatinny top rail. Available in both 1.57'' and 1.93'' optic heights. Specifications for Scalarworks LEAP/13 Red Dot Sight Mount: Manufacturer: Scalarworks Color: Black Red Dot Sights-Footprint: Not Applicable Optic Cut: Not Applicable Country of Origin: USA Features of Scalarworks LEAP/13 Mount Quick-detach mount: Leap mount features an even stronger base with a forward lean to provide more room for magnifiers and chamfered side pockets for improved thumbscrew access. The re-designed clamp has discreet hardened steel pins and a stopper to indicate when it's sufficiently open to clear a Picatinny rail. Compatibility: Aimpoint Comp M4 CompM4s Pro ring. Package Contents: Scalarworks LEAP/13 Red Dot Sight Mount T-25 BIT Fasteners Scalarworks SW1510: LEAP/13 Red Dot Sight Mount 1.57in Black