7/9/10/12/13.5/15 Inch Free Float Keymod Handguard Rail Mount System For .223/5.56(AR15) Black Color NSR-xB

T6 6061 Aluminum body
High-quality CNC process
Barrel Nut Optional : Steel or Aluminum
Black color
Monolithic top rail (21mm)
Fits .223/5.56  (AR15) Spec
Keymod cutouts for easy install of your favorite accesories
lightweight forend

Barrel nut inside diameter: 1.02 in (26mm)
Barrel nut outside diameter: 1.35 in (34.4 mm)
Barrel nut mounting thread spec.: 1-1/4-18 UNC

Package:
one handguard+screw+Barrel nut +wrench+Shim