Zenitco B-31LN Upper Picatinny Rail for Saiga-9
- $289
Available Options
In short: The Zenitco B-31LN is a one-piece D16T aluminum upper Picatinny rail documented for Saiga-9. It requires both the B-21L and DL-2 interfaces, attaches with eight supplied screws and weighs 131 ± 5 g.
Compatibility checkpoint
- Documented application: Saiga-9.
- Required components: B-21L and DL-2.
- Mounting: eight supplied screws connect B-31LN to both required components.
Do not select this model solely because another B-31-family rail looks similar. Match the exact lower interface before ordering.
Purpose and construction
B-31LN forms a continuous upper Picatinny mounting surface on the manufacturer-documented configuration. The body is milled as one piece from D16T aluminum alloy. The current Bazalet card offers black, desert and golden khaki finishes.
Technical specifications
| Material | One-piece milled D16T aluminum alloy |
|---|---|
| Documented application | Saiga-9 |
| Required interface | B-21L + DL-2 |
| Dimensions | 238 × 46 × 37 mm, ±5 mm |
| Weight | 131 ± 5 g |
| Fasteners | 8 supplied screws |
| Operating range | −50°C to +50°C |
| Finishes | Black, desert or golden khaki |
| Manufacturer warranty | 60 months |
What's in the Box
- B-31LN upper rail — 1
- Mounting screws — 8
- Operating manual — 1
Installation
- Remove the existing upper cover from the assembly.
- Reassemble the lower interface using B-21L and DL-2.
- Position B-31LN on both components.
- Secure all eight supplied screws evenly and verify the complete assembly.
Follow the current manufacturer manual for the exact configuration.
Frequently asked questions
Which components are required for B-31LN?
The manufacturer documents B-31LN with both B-21L and DL-2. Eight supplied screws connect the three components.
Which application is documented?
The current manufacturer page identifies Saiga-9 for this exact B-31LN version.
Is 238 mm the Picatinny section length?
No separate Picatinny-section length is stated. The manufacturer publishes 238 × 46 × 37 mm as the overall dimensions.
What is included?
The delivery set contains one B-31LN upper rail, eight mounting screws and one operating manual.
General
Mounting & Rails
Care & Chemicals
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