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. Specifications: SKU: SID5-120 Height ( Optic center from top of Rail): 1.57″ Width: 1.10″ Length: 2.78″ Weight: 2.7 ounces Features: Lower 1/3 Co-witness Finish: Black Anodized Compatibility : Actus Core 11×20 | Actus Core 21×20 | Aimpoint CompM5 | Aimpoint CompM5b | Aimpoint Micro H-1 | Aimpoint Micro H-2 | Aimpoint Micro T-1 | Aimpoint Micro T-2 | Athlon Midas TSR2 | Burris Fastfire RD | Gideon Advocate Micro Prism | Hawke Frontier 1z22 | Hawke Prism Series | Holosun 403 Models (B, C, GL, R) | Holosun 503 Models (BU, C, CU, FL, G, GU, R) | Holosun 515 Models (C, CM, CT, GM, GT) | Holosun 530 Models (C, G) | Holosun ARO / ARO Evo Series | Primary Arms SLX Advanced Rotary Knob | Primary Arms SLX MD-20 | Primary Arms GLx MD-21s | Sightmark Wolverine 1×23 CSR | Sightmark Wolverine 1×28 FSR | Sig Sauer Romeo4 | Sig Sauer Romeo5 | Sig Sauer Romeo-MSR | Swampfox Liberator 1×22 | Swampfox Raider 1×20 Micro Prism | Vector Optics Centurion 1×20 | Vector Optics Maverick 1×22 | Vector Optics Scrapper 1×22 | Vector Optics Scrapper 1×25 | Vortex Crossfire | Vortex Sparc AR | Vortex Sparc Solar | Vortex Triumph | Zero Tech Thrive Micro Prism | Zero Tech Trace R.A.S