Zenitco B-50 Four-Sided Picatinny Handguard for PK / PKM / PKP
- $599
Available Options
In short: Zenitco B-50 is a four-sided Picatinny handguard system for PK, PKS, PKM, PKMS and PKP. The supplied mounting hardware is platform-specific: use the 16 mm posts and M5×30 upper screws for PK/PKS/PKM/PKMS, or the 66 mm posts and M5×80 upper screws for PKP.
Compatibility matrix
| Host model | Required posts | Required upper screws |
|---|---|---|
| PK, PKS, PKM, PKMS | 16 mm posts | M5×30 |
| PKP | 66 mm posts | M5×80 |
Selection checkpoint: The two post lengths are assigned to different model groups. Do not substitute the PKP hardware for the PK/PKS/PKM/PKMS route or vice versa.
Purpose and construction
The assembled B-50 forms four Picatinny rails for compatible accessories. The manufacturer documents Classic RK-0, RK-1, RK-2 and RK-4 grip paths. B-51 is the related upper rail for this platform family; it is sold separately.
Technical specifications
| Host models | PK, PKS, PKM, PKMS, PKP |
|---|---|
| Output interface | Four Picatinny rails |
| Material | D16T aluminum alloy, machined construction |
| Weight | 495 / 535 g, +10 g tolerance |
| Dimensions | 205 × 85 / 135 × 53 mm, ±5 mm tolerance |
| Operating temperature | −50 to +50 °C |
| Finish | Black |
| Manufacturer period | 60 months for storage and operation |
Installation
Separate the B-50 sections with the supplied No. 4 hex key. Position the lower and side sections, then install the post and upper-screw set assigned to the exact host model. Fit the upper section and tighten the fasteners evenly according to the manual.
What's in the Box
| Zenitco B-50 handguard system | × 1 |
| 16 mm posts | × 3 |
| 66 mm posts | × 3 |
| Side ties | × 2 |
| M5×80 screws | × 3 |
| M5×30 screws | × 3 |
| M5×16 screws | × 6 |
| No. 4 hex key | × 1 |
| Height-adjustment inserts | × 2 |
| Operating manual | × 1 |
Frequently asked questions
Which hardware fits PK, PKS, PKM and PKMS?
Use the supplied 16 mm posts with the M5×30 upper screws.
Which hardware fits PKP?
Use the supplied 66 mm posts with the M5×80 upper screws.
How many Picatinny rails does B-50 provide?
The assembled system forms four Picatinny rails.
Is B-51 included?
No. B-51 is a separate related upper rail.
Zenitco Specs
General
Mounting & Rails
Kit Contents
Care & Chemicals
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