Sidelok is a groundbreaking Quick Detach (QD) mounting system for optics. It eliminates the need for tools, levers, or oversized knobs, offering a simple push button design for securely mounting any optic to a picatinny rail. The system guarantees to maintain zero and ensures continuous return to zero when remounted in the same position as when the optic was zeroed. With an additional safety feature to prevent unintentional movement or detachment of the optic, Sidelok represents the future of optics mounts. SPECS: Height (From top of Picatinny Rail): .659a ^2 Width: 1.10a ^2 Length: 2.250a ^2 Weight: 2.4 oz Features: No Co-witness (low profile Mfg: Kinetic Development Group Llc