Congrats. You are going to love it. Super fun to shoot. Have shot Fed. bulk and CCI with no problems. Usually wipe off the feed ramp about every 100 rounds with a oil moist rag or qtip and then a dry one. Had to move my sights from factory quite a bit. Really shoots and cleans up well. Did notice spring was directional. Something we all eventually learn when disassembling firearms or other things with small parts. Pay attention to detail. I try to layout parts in same orientation for examining until I am familiar with them. Still get bit sometimes.