The B-2U Rail is a milled product made of D16T aluminum alloy, available with black or desert coating. 

The B-2U is designed for use on Basis rails found on "Sport," "Leader," and "Joker" lines, as well as handguards with "U" or "L" in their product names. 

It provides an additional Picatinny rail in a user-preferred position on the Basis rail, allowing attachment of tactical flashlights, lasers, grips, bipods, and other accessories.

Modifications:

• B-2M rail – 15 mm
• B-2L rail – 34 mm
• B-2 rail – 45 mm
• B-2U rail – 75 mm

Specifications:

Material: D16T aluminum alloy

Operating Temperature Range: -50°С to +50°С

Weight (without mounting elements): 15 ± 2 g

Overall Dimensions: (75 x 22 x 9) ± 2 mm

In the Kit:

Installation Instructions for the B-2U Rail on the Basis Rail:

1. Choose the most suitable position on the Basis rail.
2. Select the installation method. Using a single mount is sufficient, but both elements can also be installed.
3. Align the openings on the Basis rail with the B-2U rail.
4. If using an oval mount:
   • Install the oval mount on the B-2U rail. The screw should not be fully tightened to allow rotation in the Basis rail.
   • Install the B-2U on the Basis rail, ensuring the oval mount fits into an opening on the rail. Use a screwdriver to rotate the mount clockwise 90° to secure it.
5. If stacking rails, position the B-2U rail at the connection point and secure with an M5x9 screw.