The B-21M handguard rail is designed for Vityaz-SN, Saiga-9, and TR9 Paradox.

The B-21M handguard rail forms three Picatinny rails, allowing the attachment of additional equipment to the weapon:

• Tactical flashlights
• Laser pointers
• Bipods
• B-9M and B-9AK mounts for flashlights
• A-1 slingmount
• NPN-1 Picatinny rail cover
• RK-1, RK-2, RK-4, RK-0, and RK-5 grips
• FP-1 and FP-2 wire holders
• B-19 or B-19N upper handguards
• B-22 rear sight rail

Operational Benefits:

• Improves barrel cooling from the receiver to the gas tube
• Allows for the attachment of additional equipment
• Maintains the "Dovetail" base for optical sights even when tactical flashlights or lasers are installed

Specifications:

Overall dimensions: 165 x 54 x 42 mm

Weight: 172 g

Material: Aluminum alloy D16T

Working temperature range: -50 to +50 °C

In the Kit:

Installation Instructions:

1. Perform an incomplete disassembly of the weapon and remove the regular handguard.
2. Install the "B-21M handguard" in place of the regular handguard. Ensure rigid installation by:
   • Installing the regular handguard retainer on B-21M
   • Attaching B-21M to the receiver
   • Placing a wooden or metal spacer on the handguard retainer and hammering the B-21M rail into the receiver
   • Closing the lever on the handguard retainer
3. Reassemble the rifle.

Note: Do not file the handguard during installation to avoid backlash at the junction of the handguard with the receiver. Proper installation ensures the stability of sights, affecting shooting accuracy.

Warranty:

The product comes with a 60-month warranty.

The hardness of the handguard landing determines the stability of the sights, directly impacting shooting accuracy.

The manufacturer reserves the right to make changes to the product design or configuration without prior notice, provided these changes do not worsen the technical characteristics or consumer properties and align with the goal of improving design or production technology.