
The Osight Mounting Base Adapter (RMR to Picatinny / High) provides a secure, no‑nonsense fit on any Picatinny rail.
Its 7075 aluminum body and reinforced steel base deliver reliable strength in a compact form.
Two cross‑bolts apply strong clamping force to keep the sight firmly in place, even during heavy use.
Designed for quick, straightforward installation, it offers dependable performance for both professionals and enthusiasts.
Built exclusively for use with Osight C and Osight X sights.
The Osight Sight Mounting Base Adapter (RMR to Picatinny / High) allows secure mounting of Red Dot / Green Dot sights in Picatinny rails.
Made from high‑quality, long‑lasting materials, making it a dependable choice for both professional users and enthusiasts.
Built from aerospace‑grade 7075 aluminum with a reinforced steel base, it provides exceptional durability and stability.
Two strong cross‑bolts deliver maximum clamping force on the Picatinny rail, ensuring a solid and reliable hold.
It enables quick and secure installation of the sight on a standard Picatinny platform.
Installation Flexibility
One mount height is ideal for setups requiring a lower sight line, while the taller option suits configurations that need a higher aiming position.
Material and Strength
Constructed from 7075 aircraft‑grade aluminum alloy, offering excellent strength, low weight, and corrosion resistance. A reinforced steel base adds even greater durability and stability.
Secure Mounting
Two robust cross‑bolts deliver strong clamping force on Picatinny rails, ensuring the red dot sight stays firmly in place during movement or repeated firing.
Compact and Practical
Its compact size makes it easy to carry and install, while the reinforced structure is built to withstand demanding environments and heavy use.
Compatibility
The Osight Picatinny Rail Mount Adapter is designed exclusively for Osight C and Osight X models.
Also for Osight S, Osight SE and Osight K when used in conjunction with the RMR to RMSc adapter plate
Please note that the Red Dot Sight is not included, only the adapter.


| Product Color | Black |
| Product Finish | Mate |
| Product Dimensions | 49.2 x 30.5 x 28.8 mm |
| Product Total Weight | 96 g |
| Compatibility | Red Dot and Green Dot Osight |
| Country of Manufacture | China |
| EAN | 6977261691619 |
| Additional References | RMA-OSP157 |
| Additional References | OSP157 |
| Additional References | OSP-157 |