Zenitco B-31LV Low-Profile Picatinny Upper Rail
- $289
Available Options
In short: The Zenitco B-31LV is a D16T aluminum upper component with a low-profile Picatinny rail. It is used in the documented Sport-2, Sport-4 and Sport-4S assemblies and secures to the matching lower component and front extension with eight screws.
Compatibility checkpoint
- Documented assemblies: Sport-2 V2.0, Sport-4 and Sport-4S.
- Rear connection: B-21L, B-10L or B-10LS, according to the selected assembly.
- Front connection: DL-2 or DL-2S, according to the selected assembly.
B-31LV is an assembly component rather than a standalone lower support. Confirm the matching lower component and front extension before ordering.
Technical specifications
| Interface | Low-profile upper Picatinny rail |
|---|---|
| Material | D16T aluminum alloy |
| Dimensions | 238 × 50 × 37 mm, ±5 mm |
| Weight | 132 ± 5 g |
| Operating range | −50°C to +50°C |
| Manufacturer warranty | 60 months |
What's in the Box
- B-31LV upper rail — 1
- Mounting screws — 8
- Operating manual — 1
Installation
Install the matching lower component first. Place B-31LV above it, position the matching DL-2 or DL-2S extension at the lower front, and secure the assembly with all eight supplied screws according to the manual.
Frequently asked questions
Which assemblies use B-31LV?
The manufacturer documents it as a component of Sport-2, Sport-4 and Sport-4S assemblies.
Can B-31LV be installed by itself?
No. It connects to a matching B-21L, B-10L or B-10LS lower component and a DL-2 or DL-2S front extension.
How is it secured?
The delivery set includes eight screws used to connect the upper rail to the matching assembly components.
Which finishes are offered here?
The available selections on this page are black and desert.
General
Mounting & Rails
Care & Chemicals
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