I'm selling a custom 300 blackout. It is a 17 Designs upper with a Rosco barrel, Geissele Airborne charging handle, a Fail Zero BCG and a Sig Romeo red dot. The lower is a Franklin Armory FAI-15 with a SI grip, Magpul adjustable buttstock. The upper has a few scuffs but nothing major. The lower is in like new condition. Asking $700. Pretty firm. No trades please. Thanks for looking