Hey guys, i just finished building a 5.45x39 AR and put a few hundred rounds through it. I noticed my casings were ejecting in the 4:30-5 o'clock position and scraping my shell deflector. A friend reccomended a lighter buffer to help but I'm not sure. Rifle is 16" carbine length gas standard buffer and spring. No issues locking back on empty or problems stripping rounds from the magazine.