This is what 2A Armament says:



The 2A Armament™ Xanthos rails continue the tradition of an extremely lightweight, rugged, and quality rail to complement the 2A Armament Xanthos-lite receiver set and the .308 handguard market. Two different styling choices are available, a traditional Balios inspired design (XRVC-15), and a more progressive slant cut design (XRSC-15).  The aluminum barrel nut, with 2A's innovative 45 degree set screw mounting system provides an easy to install, solid joint to the upper receiver with no protruding fasteners or sharp edges.


    Made from U.S.A. Certified 6061 Extrusion
    U.S.A. Certified 7075 Al barrel nut
    M-LOK mounting solution
    Mil-Spec hardcoat black anodized only
    Free floating design
    1.7” Internal Diameter
    15” Rail w/barrel nut, Balios inspired pattern, weight 9.9 oz) (2A-XRVC-15)
    15” Rail with barrel nut, Diagonal cut outs, weight 10.5 oz (2A-XRSC-15)
    DPMS high standard, barrel nut threads fit  1  7/16"-16 UN-3A

Xanthos Rails (.308) M-LOK

$264.00 Regular Price
$250.80Sale Price