Sons Of Liberty Gun Works COMBAT FSB 5.56X45 NATO 20'' GOVERNMENT PROFILE 1-7 TWIST 20COMBAT556FSB

SOLGW Combat FSB barrels use a traditional Government profile, are 1:7 twist, 5.56mm NATO chambered, 4150 CMV steel, and QPQ treated inside and out.

They have F-Marked FSB towers (taper pinned), and include USGI barrel nuts, Delta Ring assemblies, and handguard caps.