This is what 2A Armament says:

 

 

A simple weight saving component for our AR15 BL rails . The aluminum BL rail barrel nut is made from 7075-T6 Aluminum, and then anodized black. This nut will save an additional .65oz over the standard titanium barrel nut.

    SKU (2A-ALBN-1)
    Weight 1.10 oz

Aluminum Barrel Nut

SKU: 2A-ALBN-1
$29.00 Regular Price
$27.55Sale Price

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