5ku B-31 Long Upper AK Handguard - Zenitco Style Gas Tube Cover
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5ku B-31 Long Upper AK Handguard - Zenitco Style Gas Tube Cover

The 5ku B-31 is a premium, Zenitco-style elongated upper handguard and gas tube cover designed for AK-series replicas. CNC-machined from lightweight aluminum, it mounts directly onto compatible lower handguards to provide a continuous, rock-solid top Picatinny rail for optics, lasers, and switches.

39.95 € Tax included

32.217742 Tax excluded

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local_shipping FREE delivery to Estonian Parcel terminal from50€ (Omniva or DPD). Details

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Return policy
14-day return option after receiving the goods

Transform your tactical rifle platform with the 5ku B-31 Long Upper AK Handguard. Precision CNC-machined from high-strength aluminum, this extended Zenitco-style upper gas tube cover is engineered specifically for AK-series airsoft replicas to maximize modular optics and accessory mounting space.

Unlike standard short handguards, the elongated B-31 design stretches forward over the gas tube, providing a significantly longer 21mm top Picatinny rail. This configuration is highly favored by professional operators because it allows you to mount micro red dot sights further forward for a faster sight picture, while leaving plenty of room behind or to the sides for dual-button pressure switches and laser designators.

Key Features:

  • Extended Picatinny Space: Provides a continuous, elongated upper rail section ideal for tactical lasers, optics, and wire management.

  • Rock-Solid Marriage: Screws directly into compatible lower RIS handguards (such as the B-30), forming a completely rigid, split-free handguard assembly that maintains zero.

  • Aggressive Lightweight Design: Features ventilation cutouts to mimic realistic heat dissipation while keeping front-end weight to an absolute minimum.

Technical Specifications:

  • Manufacturer: 5ku

  • Model: B-31 Extended Upper Handguard

  • Material: High-grade CNC Aluminum

  • Rail Type: 21mm Picatinny RIS

  • Compatibility: Fits Zenitco-style extended AK lower handguards (such as the B-30 and similar platforms)

5KU
5KU-229-BK
New
1 Item
9010109410892

1. Orders & Shipping

What are the shipping methods?

We ship across Estonia using Omniva and DPD parcel terminals. You can also choose to pick up your order personally from our Tallinn store.

How fast will I receive my order?

In-stock products are usually dispatched within 1–2 business days. For items marked "On order" or "Tellimisel," delivery may take up to 15 business days.

Do you ship internationally?

Yes, we ship across Europe. To see the exact shipping cost, please enter your address during checkout or contact us directly.

3. Returns & Claims

Can I return a product if it doesn't fit?

Yes, a 14-day return right applies to products purchased from the online store. The product must be unused, in its original packaging, and with tags attached. Underwear and hygiene products cannot be returned.

Items purchased from the physical store cannot be returned for a refund; however, we can exchange them for a gift card or another product. Used products cannot be returned.

How do I return a product?

Please contact us at info@milshed.com to arrange the return method. In Estonia, returns via parcel terminal are usually free.

What happens if a product breaks?

Private individuals have a 2-year right to file a claim. If a defect appears within the first 6 months, it is assumed it existed at the time of purchase (manufacturing defect).
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