Description
FAB Defense FXRBS folding rear back-up sight is a low-profile auxiliary sight designed to mount on a 1913 Picatinny rail. It deploys with an instant spring-locked mechanism and sits low when folded to help avoid snagging. Dual apertures provide two viewing options, and the front shroud is shaped to help center the image.
Key features
- Low folded profile for a smooth, inconspicuous carry height
- Spring-locked deployment to prevent slipping, breakage, or deformation
- Dual apertures: 3mm and 1.5mm for different eye-relief setups
- Made from durable high-grade polymer and metal
- Works with any front sight, with primary or back-up use
Specifications
| Fits | 1913 Picatinny rail (rear sight rail mount) |
|---|---|
| Part Type | Folding rear sight, back-up sight |
| Color/Finish | Black |
| Apertures | 3mm and 1.5mm |
| Materials | Polymer and metal |
