B-31 Handguard by Zenitco

Name: B-31 Handguard by Zenitco
Brand: Zenitco
SKU: Zen-B-31
Price: 249 USD
Availability: InStock
Rating: 5 (1 reviews)

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Brand: Zenitco

Product Code: Zen-B-31

Availability: In Stock

SKU: Zen-B-31

MPN: Zen-B-31

$249.00
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Zenitco B-31 Top Gas Tube Rail (V2.0) - Long Picatinny Rail for AK-Pattern Platforms

Genuine Zenitco | CNC-machined D16T aluminum | 185 mm top Picatinny rail | Black, Desert & Golden khaki

In short: a genuine Zenitco B-31 (V2.0) - a long, one-piece milled top rail that runs over the barrel and gas tube of AK-pattern platforms, forming a 185 mm Picatinny rail for optics and a red dot. It sits low enough to leave the iron sight line clear. Machined from D16T aluminum alloy; about 116 g. Available in black, desert and golden khaki.

The B-31 is the extended upper rail of the Zenitco handguard system. It gives you a continuous 185 mm Picatinny top rail so you can run a magnified optic or a red dot with plenty of mounting length, while the open, skeletonized body keeps weight low.

It mounts to a Zenitco B-30 or B-30U handguard, or to a B-10L handguard combined with the DL-1 add-on (or with the Sport-1 kit in place of the B-31L), using eight screws for a rigid, return-to-zero fit. A genuine Zenitco factory part machined from D16T aluminum alloy; it measures about 200 x 47 x 37 mm and weighs about 116 g.

Compatibility Note: Mounts to a Zenitco B-30 / B-30U handguard, or a B-10L handguard with the DL-1 add-on (or a Sport-1 kit), with eight screws. Confirm your handguard setup before ordering.

Key Advantages

Genuine Zenitco factory part with exact original fit
Long 185 mm top Picatinny rail for optics
Sits low - does not block the iron sight line
Eight-screw mount for a rigid, return-to-zero fit
CNC-machined D16T aluminum - strong and light (about 116 g)
Available in black, desert and golden khaki

Technical Specifications

Brand	Zenitco
Part Type	Top gas tube rail (V2.0)
Fits	AK-pattern platforms (via Zenitco handguard)
Mounts To	Zenitco B-30 / B-30U, or B-10L + DL-1 - 8 screws
Rail	Picatinny top rail, 185 mm
Material	D16T aluminum alloy (CNC-milled)
Weight	~116 g
Dimensions	~200 x 47 x 37 mm
Finish	Black / Desert / Golden khaki
MPN	Zen-B-31
Condition	New

Frequently Asked Questions

What is the Zenitco B-31?

It is a genuine Zenitco long top rail that runs over the barrel and gas tube of AK-pattern platforms, forming a 185 mm Picatinny rail for optics.

What does it mount to?

A Zenitco B-30 or B-30U handguard, or a B-10L handguard with the DL-1 add-on (or a Sport-1 kit), using eight screws.

How long is the rail?

The top Picatinny rail is 185 mm, giving plenty of mounting length for a magnified optic or red dot.

Does it block the iron sights?

No - it sits low enough that standard mechanical sights remain usable.

What is it made of?

CNC-machined D16T aluminum alloy with a protective coating. It weighs about 116 g and measures about 200 x 47 x 37 mm.

Is this a genuine Zenitco part?

Yes - it is an original Zenitco part with guaranteed US delivery.

Add a full-length optics rail - order the genuine Zenitco B-31 top rail.
In Stock | Guaranteed US Delivery | Genuine Zenitco Part
Related: B-10M Lower Handguard | B-19 Gas Tube Rail | B-33 Receiver Cover Rail