OLIGHT RMA-OSP091 Rail Mount Adapter for OSIGHT/OSIGHTX Optics

The OLIGHT RMA-OSP091 Rail Mount Adapter transforms OSIGHT and OSIGHTX optics into versatile tactical accessories compatible with standard Picatinny and Weaver rail systems. This precision-machined adapter eliminates the need for proprietary mounting solutions while maintaining zero retention across multiple platforms.

What Makes This Different

Unlike generic optic mounts that compromise stability, the RMA-OSP091 features OLIGHT's proprietary locking mechanism that creates a solid interface between optic and rail. The adapter maintains the original optical alignment of OSIGHT series devices while adding tactical rail compatibility. Machined from aircraft-grade aluminum, it weighs just 1.2 ounces without adding bulk to the optic profile.

Key Features

• Compatible with all OSIGHT and OSIGHTX series optical devices
• Fits standard 1913 Picatinny and Weaver rail systems
• Aircraft-grade aluminum construction with Type III hard anodizing
• Tool-free installation with integrated quick-release lever
• Maintains original optic height and eye relief specifications
• Corrosion-resistant finish rated for saltwater exposure
• Return-to-zero capability after repeated mounting cycles

Field testing demonstrates the adapter maintains optical zero through 500+ mount/dismount cycles. The quick-release mechanism allows rapid optic transfer between multiple weapon platforms without tools or adjustment. Weather sealing prevents moisture ingress at the optic interface, ensuring reliable performance in adverse conditions from -40°F to +140°F operating range.

Technical Specs

• Weight: 1.2 ounces (34 grams)
• Material: 6061-T6 aluminum alloy
• Finish: Type III hard coat anodized
• Rail compatibility: MIL-STD-1913 Picatinny, Weaver
• Mounting: Tool-free quick-release cam lever
• Temperature range: -40°F to +140°F (-40°C to +60°C)
• Torque specification: 15 inch-pounds maximum
• Country of origin: China

The RMA-OSP091 adapter represents essential kit for operators running OLIGHT optics across multiple platforms. Professional gunsmiths stock this adapter for customers upgrading from weapon-mounted lights to rail-mounted optical systems.