Zenitco B-21U Handguard Rail - for Vityaz / Saiga-9 PCC (Basis + Picatinny)
Zenitco B-21U Handguard Rail - for Vityaz / Saiga-9 PCC (Basis + Picatinny)
CNC-Machined D16T Aluminum | Lower Picatinny + Side Basis Rails | Improves Barrel Cooling | 130 g | Black / Desert
The Zenitco B-21U Handguard is a CNC-milled D16T aluminum handguard that replaces the standard handguard on Vityaz, Saiga-9, and TR9 Paradox pistol-caliber sporting platforms (PCC). It forms a lower Picatinny rail and Basis guides on both sides for flexible accessory mounting.
It accepts upper rails (B-19, B-19N, B-22), under-barrel lights, laser units, bipods, and Classic-line grips (RK-0, RK-1, RK-2, RK-4, RK-5, RK-6). The Basis guides also take B-2, B-2L, B-2M, B-2U Picatinny rails, A-1L/A-2L sling swivels, the A-4 QD swivel mount, the RL-1 hand stop, NPN-2 covers, FP-3 wire holders, and "D"-series remote switches.
Installation Note
The B-21U must seat very tightly in the receiver slot - do not file it down, as this can introduce play. A solid fit determines the rigidity of your mounted sights and therefore your accuracy. Install per the manual.
Key Advantages
- Lower Picatinny + side Basis rails - mount lights, lasers, bipods, grips
- Improves barrel cooling - open design vents heat
- Wide accessory ecosystem - B-19/B-19N/B-22 uppers, B-2 rails, RK grips, and more
- CNC-machined D16T aluminum - high strength, rigid mount for repeatable accuracy
- Black or Desert finish
Technical Specifications
| Material | D16T Aluminum Alloy (CNC-milled), coated |
| Product Code | B-21U |
| Weight | 130 +/- 10 g |
| Dimensions (L x W x H) | 165 x 38 x 40 mm (+/- 5 mm) |
| Rail Type | Lower Picatinny + side Basis guides |
| Operating Temperature | minus 50 to plus 50 C |
| Warranty | 60 months |
| Available Colors | Black, Desert |
Compatibility
Fits Vityaz, Saiga-9, and TR9 Paradox pistol-caliber sporting platforms (PCC). See the compatibility filter on this page to confirm fitment for your specific platform.
What's Included
- (1) Zenitco B-21U Handguard (selected color)
- (1) User Manual
FAQ
Q: What platforms does it fit?
A: Vityaz, Saiga-9, and TR9 Paradox pistol-caliber sporting platforms.
Q: What can I mount on it?
A: Lower Picatinny takes lights, lasers, bipods and Classic RK grips; side Basis guides take B-2 rails, sling swivels, hand stops and more. It also accepts B-19/B-19N/B-22 upper rails.
Q: Any install tips?
A: Seat it tightly and don't file it down - a rigid fit keeps your sights repeatable and your accuracy consistent.
Q: How does shipping work?
A: US orders are fulfilled and delivered through our partner's domestic US logistics network. Delivery is not express, but it is reliable and fully guaranteed.
Upgrade Your PCC Platform
In Stock | Guaranteed US Delivery | 60-Month Warranty
Zenitco Specs
General
Recommended
Zenitco, B-21U, Handguard, Handguard Rail, Vityaz, Saiga-9, TR9 Paradox, PCC, Basis Rail, Picatinny, Bazalet