HANDGUARD FEATURES:

Magnesium/aluminum alloy
Approximately 30% reduction in material weight compared to commonly used 6061 aluminum.  

Cerakote H-190 finish.

M-LOK design for the AR-15 platform

SLIM DESIGN with an ID of 1.3"(left to right) & 1.55" (top to bottom for gas block clearance)
 

HANDGUARD SPECS:
Length: 18.0" Width: 1.5" Height: 1.97" Weight Approx: 7.8 oz
Length: 16.5" Width: 1.5" Height: 1.97" Weight Approx: 7.3 oz
Length: 15.0" Width: 1.5" Height: 1.97" Weight Approx: 6.7 oz
Length: 13.5" Width: 1.5" Height: 1.97" Weight Approx: 6.1 oz
Length: 11.1" Width: 1.5" Height: 1.97" Weight Approx: 5.0 oz
Length: 10.0" Width: 1.5" Height: 1.97" Weight Approx: 4.6 oz
Length: 9.2"   Width: 1.5" Height: 1.97" Weight Approx: 4.2 oz
Length: 7.1"   Width: 1.5" Height: 1.97" Weight Approx: 3.3oz
 

BARREL NUT FEATURES:

Super aluminum 7068; significantly harder & stronger than 7075 aluminum

Type 3 mil-spec hard coat anodized black
Ships with wrench
Ships with mounting screws (TORX T25)

Weighs approx. 1.13 OZ 

Included in rail purchase 

DarkLite magnesium handguard barrel nut interface tolerance is tighter and handguard may need to be tapped on with a plastic/rubber hammer.  Light heat from a heat gun can also ease installation.