Zenitco B-31S V2.0 Upper Picatinny Rail for B-30/B-30U
- $259
Available Options
In short: The Zenitco B-31S V2.0 adds a 170 ± 5 mm upper Picatinny section when paired with a B-30 or B-30U lower handguard. Its one-piece D16T aluminum body mounts with eight included screws and keeps the mechanical sight line clear.
Compatibility checkpoint
- Required lower handguard: Zenitco B-30 or B-30U.
- Documented platform group: AK and Saiga configurations based on the AK platform.
- Sport-1: the manufacturer documents B-31S V2.0 as an alternative to B-31L in a compatible Sport-1 configuration.
- Color: select black, desert or golden khaki; the selected color opens its matching image.
Construction and purpose
B-31S V2.0 is milled as a one-piece bracket from D16T aluminum alloy. It creates a Picatinny section above the gas tube and gas chamber without covering the mechanical sight line.
Technical specifications
| Material | D16T aluminum alloy |
|---|---|
| Picatinny length | 170 ± 5 mm |
| Weight | 116 ± 5 g |
| Dimensions | 200 × 47 × 37 mm (±5 mm) |
| Operating range | −50°C to +50°C |
| Manufacturer warranty | 60 months |
What's in the Box
- B-31S V2.0 upper rail — 1
- Mounting screw — 8
- Operating manual — 1
Installation
Remove the original upper cover according to the platform service procedure. Position B-31S V2.0 on the installed B-30 or B-30U lower handguard and secure it with the eight supplied screws. Follow the current manufacturer manual and verify that each fastener is evenly seated.
Frequently asked questions
Can B-31S V2.0 install by itself?
No. It requires a Zenitco B-30 or B-30U lower handguard as its mounting base.
Can it be used with Sport-1?
Yes, in the manufacturer-documented Sport-1 configuration it can replace B-31L.
How long is the Picatinny section?
The documented Picatinny length is 170 ± 5 mm.
What is included?
One B-31S V2.0 upper rail, eight mounting screws and one operating manual.
Zenitco Specs
General
Mounting & Rails
Care & Chemicals
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