Originally Posted by pbrause2010
I have had similar problems with my AR and wolf ammo. This is not the only ammo that jams but is definitely the worst offender. It jams all the time. I built my AR from a Del-ton upper kit and a JD lower. I bought a one of the more expensive kits and I only use pmags. I had some friends check it out and it is definitely assembled correctly. I keep it clean with CLP and Hoppes. I don't know what the problem is but I definitely would not trust my life to this weapon. If I keep shooting it with top dollar ammo will it eventually break in? Probably only have 200rds through the thing. I like the AR platform but it's such a drag when it jams. I bought a nice Bulgarian AK-47 just to have something reliable to shoot at the range.
You might want to try your upper on a friend's lower as a test, especially if they have a lighter buffer. If no improvement which I doubt there will be, I would be all over Del-Ton to get this corrected. You may have to send back the upper but at least get it fixed in the long run.
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
US Army 1966-69, VFW Life Member, Retired Geek