''B-50 handguard'' rail creates Picatinny rails on the machine gun in the location of the intended handguard. "B-50 handguard" rail consists of milled elements made of aluminum alloy D16T coated with black color.
"B-50 handguard" rail is designed for PK, PKM and PKP machine guns.
Forms four Picatinny rails that allow you to install collimator sights, laser designators, combined devices, led flashlights, RK-2 grip and other attachments. 
In addition to the standard installation, the grip can be installed at an angle of 45° by B-25U rail.

Maximum weight: 450±10 g.

Maximum overall dimensions: (205x135x53) ± 5 mm.

In the kit:

• "B-50 handguard" rail (upper part, lower part, right part, left part) - 1 pc
• Bars L=16 mm and L=66 mm - 2 sets
• M5x80 screw - 3 pcs
• Hex key No. 4 - 1 pc
• Hex key No. 2.5 - 1 pc