Update. After seeing pictures on trigger block i disassembled gun and noticed I didn't have all the packing grease out of it. Cleaned second time and took to the range. Only had time to throw about 50 rounds down range due to sighting in new red dot on my 8 yr olds M&P 15-22. No discharges using decocker, however had fail to feed on last round on every clip used. Was putting 5 rounds at a time in clip so I could test decocker more often. Not sure what is causing ftf. Done it on both clips. May just not be broke in yet. Luckily as a home gun I have 17 rounds begore last one.