Tried out my brand new Diamondback AR-15 last week and was using some surplus .223 ammo, had misfires (light primer strikes), failure to feed and failure to eject issues...got home and subsequently cleaned thoroughly and oiled and wet down...Tried snapcaps to see how it's functioning...two different mags, the original Diamondback 5 round and also the 10 round pmags....on both magazines, on some occasions feed and eject fine...then I get the same thing failure to feed/eject jamming and one other weird thing is that it will lock the bolt back with a round just above the mag??? What the hell. is going. on? I don't get it..Can't be just the two mags...Hellllllp lol


















































