Zenitco B-70-1 Joker-0 60 mm Upper Picatinny Handguard
- $129
Available Options
In short: The Zenitco B-70-1 is the 60 mm upper component for the Joker-0 handguard system on the AR-15 platform. It replaces the standard upper position, provides a compact top Picatinny rail and installs as part of the complete Joker-0 interface.
Compatibility checkpoint
B-70-1 is documented for the AR-15 platform and Joker-0 configuration. The manufacturer associates it with the B-80 Joker-0 lower handguard; the system installation also uses the matching mounting nut and a compatible adjustable gas block. It is not a standalone drop-in component for a standard interface.
Choose the correct upper component
This B-70-1 record is identified by its documented 60 × 39 × 38 mm dimensions. Confirm the model marking and required upper-section geometry rather than selecting it only by the shared Joker-0 name.
Technical specifications
| Documented platform | AR-15 with matching Joker-0 system components |
|---|---|
| Associated lower component | B-80 Joker-0 |
| Material | D16T aluminum alloy, one-piece milled construction |
| Accessory interface | Compact top Picatinny rail |
| Weight | 35 +3 g |
| Dimensions | 60 × 39 × 38 mm |
| Operating range | −50°C to +50°C |
| Manufacturer warranty | 60 months |
| Color | Black |
Delivery basis
B-70-1 Joker-0 upper handguard — 1.
Installation note
The documented Joker sequence first installs the mounting nut, lower component and compatible adjustable gas block. B-70-1 is then positioned on the aligned lower interface and secured with the system screws. Confirm all Joker-0 components before ordering.
Frequently asked questions
What platform is B-70-1 documented for?
The AR-15 platform with matching Joker-0 system components.
Which lower component is associated with B-70-1?
The manufacturer associates it with the B-80 Joker-0 lower handguard.
How can B-70-1 be identified?
The current official record specifies 60 × 39 × 38 mm dimensions and a mass of 35 +3 g.
Is B-70-1 a complete Joker-0 system?
No. It is an upper component; the associated lower and system mounting parts must be confirmed separately.
What's in the Box
General
Mounting & Rails
Kit Contents
Care & Chemicals
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