Zenitco B-70 Joker-0 Upper Handguard Rail for AR-15
- $229.00
-
Available Options
Zenitco B-70 Joker-0 Upper Rail
Genuine Zenitco | Joker system upper rail (Joker-0) for AR-15 | Weight 56 g
In short: the Zenitco B-70 is the upper half of the genuine Zenitco Joker modular free-float handguard for AR-15 carbines. It clamps to the Zenitco BN-1 titanium barrel nut and provides a continuous Picatinny (1913) rail for optics, sights and accessories. Part of the genuine Zenitco line.
Overview
The B-70 is the upper handguard bracket of the Joker 0 system for AR-15 platforms. It replaces the factory upper handguard half and lays a Picatinny rail along the top, so optics, night vision and accessories sit on one continuous line with the receiver rail.
Milled from a single piece of D16T aluminum with a black finish. The open construction also lets air at the barrel, which the closed factory handguard does not.
Compatibility Note: replaces the upper factory handguard on AR-15 platforms, as part of the Joker-0 system.
Compatibility: Zenitco Joker modular handguard system for AR-15; mounts on the Zenitco BN-1 titanium barrel nut. Joker-0 length class. Provides a Picatinny (1913) rail surface.
Key Advantages
- Genuine Zenitco Joker-system upper rail
- Full Picatinny (1913) rail for optics and accessories
- Precision CNC-machined D16T aircraft aluminum
- Lightweight at just 56 g
- Hard-anodized finish for corrosion resistance
Technical Specifications
| Brand | Zenitco |
| Type | Handguard rail (upper) |
| Material | D16T aluminum |
| Weight | 56 g |
| Dimensions (LxWxH) | 127 x 39 x 38 mm |
| Mounting | Picatinny (1913) |
| Fits | AR-15 (Zenitco Joker handguard system) |
| Operating temperature | -50°C to +50°C |
| MPN | Zen-B-70 |
| Condition | New |
In the Box
- 1 x Zenitco B-70 upper rail
- Mounting hardware
Frequently Asked Questions
What is the Joker system?
Joker is Zenitco's modular free-float handguard for AR-15 carbines. The upper and lower rails clamp onto the BN-1 titanium barrel nut to build a rigid, free-floating forend.
Does the B-70 fit any AR-15?
It is designed for AR-15 pattern carbines built with the Zenitco Joker barrel nut (BN-1). It is not a drop-in for standard AR handguards.
What does the B-70 replace?
The upper half of the factory AR-15 handguard. It is the top part of the Joker 0 system.
Do I need the matching lower bracket?
They are sold separately and normally used together, but the upper works on its own if you only need the top rail.
What is it made of?
One piece of milled D16T aluminum with a black finish.
Is this a genuine Zenitco part?
Yes - it is an original Zenitco B-70 with guaranteed delivery.
Related: browse more genuine gear on the Zenitco brand page.
Genuine Zenitco B-70 upper handguard rail.
In Stock | Guaranteed Delivery | Original Zenitco Part
In Stock | Guaranteed Delivery | Original Zenitco Part
General
Mounting
Picatinny (1913)
Type
Handguard rail (upper)
Brand
Zenitco
Manufacturer Part Number (MPN)
Zen-B-70
Condition
New
Intended Use
AR-15 (Zenitco Joker handguard system)
Material
D16T aluminum
Weight
56 g
Dimensions (L x W x H) mm
127 x 39 x 38 mm
Operating Temperature
-50°C to +50°C
Mounting & Rails
Mounting
Factory upper handguard seat
Function
Continuous top Picatinny rail, open construction
Zenitco, B-70, Joker, AR-15, handguard rail