hey all,

Just recently built an AR-15. This is the second build that I've done. However, I'm having an issue with FTEs. I can cycle rounds through it just fine with I'm not firing. Everything seats well, ejects well, and seems to flow rather smoothly. However, when I go "hot" with it I have a double feed issue after the very first round. Again, this doesn't happen when I'm just cycling rounds/snap caps through it without firing. I thought it might be overloading the magazine causing it to push a bit too hard on the top cartridge, but this time I even tried it with only three rounds in it. It's done this with both Tapco and Magpul PMAG magazines.

Any suggestions out there? This is getting rather frustrating.

Thanks.