Hello all. I’m new to the group. I have lurked online for a while. I decided to change some things on my DPMS carbine LR-308. I bought a Samson m-lock forearm, and changed the adj stock to. Magpul MOE fixed stock. I went with an Argo low profile adjustable gas block. I did not realize that I needed a different buffer tube. When I did I bought one of those as well ,an AR stoner extreme duty buffer assembly. It came with a new spring and buffer. All parts came from midway all were marked LR-308 compatible I went to sight in today and the gun will not cycle. When fired a bullet will not eject, it gets stuck about halfway. I can cycle it back and it ejects properly, and loads another round. No bolt catch on empty mag. I have read so many threads on the internet that I am completely confused. Im thinking either the spring/buffer is off. I’ve read about making sure bolt is oiled may be an issue. It is maintained properly. Gas rod etc... don’t really know where to start. If my parts are poop, I’ll replace, I just want it to work as designed. Main use us hunting. I’m shooting hornady 150gr interlock, they worked before the changes.
A little background on me. I have worked in firearms sales/repairs for 16yrs. But that was after the 90’s ban and I was out before AR’s we’re a huge thing. In my area anyway, that I could afford anyway. I left in 2005 and this is my first time doing work like this. I feel I have a pretty good base knowledge on shotguns and bolt guns, but this style is new to me. I own several but all have factory modifications. I live in rural south east NC. At least an hours drive from a decent gun shop and probably 1.5-2hr on a competent gunsmith. No friends in my circle with any knowledge on this. Any help on this matter would be greatly appreciated. It’s probably my own ignorance , but I’m trying to learn and feel this is the place to seek answers.