Specification:
T6061 Aluminum
Steel Barrel nut
Anodized black matte finish
Black color
Fits .223/5.56 (AR15) spec.
Monolithic top rail
With M-lok mounting slots for quick and easy installation
Lightweight design
Clamp mounting design , more easy installation
Barrel nut inside diameter: 1.02 in (26mm)
Barrel nut outside diameter: 1.35 in (34.4 mm)
Mounting thread spec.:   1-1/4-18 UNC
Package:
one handguard+screw+Barrel nut +wrench

Model no. : FLH-7
Length:  7.2 inch

Model no. : FLH-9
Length:  9.2 inch

Model no. : FLH-10
Length:  10 inch

Model no. : FLH-11
Length:  11 inch

Model no. : FLH-12
Length:  12 inch

Model no. : FLH-13.5
Length:  13.5 inch

Model no. : FLH-15
Length:  15 inch