l It is a free float rail solution for AR owners looking for a solid platform on a budget. l The barrel nut locks up with the rail via six hex bolts and timing shims used during the installation process. l It retains its slim profile from its base to the muzzle end. l Oversized cutouts along the top spine of the rail body help mitigate the weight penalty, while keeping the rifle sturdy under environmental stress. l Hard Coat Anodized Finish l Made of 6061 Aluminu