If its not cycling I would say massive gas leak also.....did you just swap bolts??? Or bcg??
New rifle and bolt, rifle functioned properly with different bolt.
correction- rifle functioned properly with different bolt group
You can troubleshoot it by just changing the bolt, then changing the BC with the original bolt.
Or just take it to BP...
If your post count is higher than your round count, you are a troll.
switched bcg, so have it narrowed down to that