Zenitco B-72 Joker-2 Upper Picatinny Handguard
- $329
Available Options
In short: The Zenitco B-72 is the upper component of the Joker-2 handguard system for the AR-15 platform. It provides a continuous top Picatinny rail and secures to the matching B-82 lower component with four screws.
Compatibility checkpoint
B-72 is designed for the Joker-2 configuration and pairs with the B-82 Joker-2 lower handguard. The complete installation also uses the Zenitco mounting nut and a compatible adjustable gas block. B-72 is not a standalone replacement for a standard upper component.
Purpose and interface
The one-piece milled component replaces the standard upper position and creates a continuous Picatinny surface when aligned with the receiver rail. Its open profile reduces unnecessary mass and supports airflow through the assembled interface.
Technical specifications
| Documented platform | AR-15 with the matching Joker-2 system components |
|---|---|
| Required lower component | B-82 Joker-2 |
| Material | D16T aluminum alloy, one-piece milled construction |
| Accessory interface | Continuous top Picatinny rail |
| Weight | 106 +3 g |
| Dimensions | 246 × 39 × 38 mm |
| Operating range | −50°C to +50°C |
| Manufacturer warranty | 60 months |
| Color | Black |
Delivery basis
B-72 Joker-2 upper handguard — 1.
Installation note
The documented procedure first installs and aligns the B-82 lower component with the system mounting parts. B-72 then seats in the B-82 grooves and is secured with four screws. Professional installation is recommended when the complete Joker-2 interface has not already been confirmed.
Frequently asked questions
Is B-72 a complete Joker-2 system?
No. It is the upper component and requires the matching B-82 lower component plus the related Joker-2 mounting parts.
Which lower component matches B-72?
The matching lower component is the Zenitco B-82 Joker-2.
What accessory interface does B-72 provide?
A continuous top Picatinny rail.
How is B-72 attached?
It seats in the B-82 grooves and is secured to the lower component with four screws during the documented system installation.
What's in the Box
General
Mounting & Rails
Kit Contents
Care & Chemicals
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