Have a barely used Seeking Precision gas AR15 currently with 300BLK barrel and a Timney trigger. I also bought the 223 barrel from SWFA when I bought the rifle as well as flip up sights. 223 barrel has not been shot, 300BLK has less than 200 through it. Flawless performance, never had a malfunction. Also have a SWFA brake that'll go on the end of it, flip up sights as well as s 1-piece Leupold scope mount. Itís a nice setup. Rifle is in great condition and is ready to go. $1200 FTF near Midlothian, text or call 214-668-8467.