I have a custom build 8" barrel chambered in 300 blackout AR-15 lightly used I've put exactly three 50 rnd boxes thru it and cleaned after each use

Has a aero precision lower m4E1($325), fail zero bolt carrier(170), rosco 8.2" barell(162), Midwest industries ar15 pistol upper (704) as well as a bcm charging handle, magpul hand grip, and straight trigger idk the brand but value well over 1300

moslty looking for trades with cash on top just testing the waters