Picatinny Rail Section Anodized Aluminum For M-Lok Handguard

3,5,7,9,11,13 slot Picatinny Section Rail 
High Quality Aluminum for M-Lok Handguard Black color 
Aluminum Picatinny/Weaver Section Rail 
Fits for M-Lok Handguard Rail
High quality made of CNC aluminum T6061.
Accessory rail section
Ideal for attaching lights, laser, optics, bipods, and forward grips
Fit for 21mm picatinny/weaver rail

Size: Width:   0.82 inch (21mm)  
Height:   0.35 inch (9.8 mm)

3 Slots:Length:  1.38 inch (35mm)  Weight:  15 g
5 Slots:Length:  2.25 inch (57.2mm) Weight:  20 g
7 Slots:Length:  3.05 inch (77.5mm) Weight:  25 g
9 Slots:Length:  3.84 inch (97.5mm) Weight:  33 g
11 Slots:Length:  4.62 inch (117.5mm) Weight:  38 g
13 Slots:Length:  5.41 inch (137.5mm) Weight:  43 g 

Package: 

Rail Section + screw+Wrench