Considering trading my upper and C-products mags for a 5.56 upper and mags. This 7.26x39 upper has been reliable for me since I added the Enhanced Firing Pin. Before that I was having failure to fires now it runs well. I’ve only sent about 300 rounds down it. Reason for trading/selling is because it’s my only AR and I want something with less recoil and more length thats more comfortable to shoot. Will consider selling the whole gun WITHOUT red dot,SBM4, and grip. UPPER ONLY. CASH value =$450