Zenitco B-19N Low-Profile Picatinny Upper Rail
- $159
Available Options
In short: The Zenitco B-19N adds a low-profile Picatinny surface above the gas chamber on eight documented Zenitco handguards while keeping the mechanical sight line clear.
Purpose
This one-piece upper rail provides a compact mounting surface at the documented handguard interface. Four supplied screws secure the rail to the lower section.
Compatibility checkpoint
The manufacturer documents B-19N for B-10M, B-10U, B-10L, B-21M, B-21U, B-21L, B-11 and B-11U. Confirm the exact lower handguard before ordering.
Technical specifications
| Material | CNC-milled D16T aluminum alloy |
|---|---|
| Dimensions | 96 × 47 × 33 mm, tolerance ± 5 mm |
| Weight | 65 ± 5 g |
| Interface | Picatinny upper rail; four-point attachment |
| Operating range | −50°C to +50°C |
| Manufacturer warranty | 60 months |
What's in the Box
- B-19N upper rail — 1
- M5×7 screws — 4
- Operating manual — 1
Installation
Remove the original upper cover according to the platform manual, position B-19N on a documented compatible lower handguard and secure it evenly with the four supplied M5×7 screws. Verify alignment and secure fit before use.
Frequently asked questions
Does B-19N block the mechanical sight line?
No. The manufacturer states that the rail position keeps the mechanical sight line clear.
Which handguards accept B-19N?
The documented list is B-10M, B-10U, B-10L, B-21M, B-21U, B-21L, B-11 and B-11U.
What hardware is included?
The set includes four M5×7 screws plus the operating manual.
Which finishes are available?
This listing offers black, desert and golden khaki with a matching product image for each selection.
General
Mounting & Rails
Care & Chemicals
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