[AnthonyG]

I've tried some of the advice from other threads, but so far everything I've tried seems to make the problem worse.

Original Problem: My gun was not feeding, or would feed the first few shots and then would miss until I removed and reinserted the mag. Seemed to be happening on both my King Arms and MAG brand midcaps.

Last week I changed the bucking and nub with a modify flat hop hard type, and added a piece of loop Velcro to the inside of my mag well to stiffen up the mags.

Results were again hit and miss, but now I was having the added problem of double-feeding, or at least now I noticed the double-feeding...

Today I opened up my gear box, cleaned it out and re-shimmed my sector gear a bit tighter (it was loose before). I also changed the stock air nozzle with an aluminum SHS one, and put a new O-ring on the piston head.

The gun cycles fine, the nozzle oscillates and I can feel air leaving the end of my barrel, but now the gun doesn't seem to shoot anything at all?

Edit 2015-10-24: Gun is back to normal after putting back the stock nozzle. The SHS aluminum nozzle was too long, then I filed it too short which created different problems. See my chart at the end of page 2 for the problem I'm having with BB Bastard Frag Ammo feeding in certain mags.