Aplus Blue NSR 15 Inch Free Float Keymod Handguard Rail Mount system with steel barrel nut for AR15 fit .223 / 5.56 rifles

 •  Slim lightweight design integrated with flexibility

 •  CNC machined body out of durable aircraft grade aluminum 6061-T6

 •  Blue hard anodized

 •  Steel barrel nut included

 •  Full length top mil-spec 1913 picatinny rail

 •  Lifetime warranty

 •  Compatible with any keymod system for AR15

 •  Keymod cutouts create for easy mounting accessories

    Barrel Nut Inside Diameter: 1.02'' (26 mm ) 

    Barrel Nut Outside Diameter: 1.35'' (34.4 mm )

    Barrel Nut Thread Spec.: 1-1/4-18 UNC 

    Length:  15 Inch