Had no idea cycling issues were due to this trigger - OpticsPlanet Exclusive CMC Triggers AR-15/AR-10 Single Stage Drop-In Trigger

Purchased this a couple of years ago because the OP was out of the Wilson Combat TTUs at the time and needed it for a build. Worked fine the first two trips to the range (less than 150-200 rounds combined). Started having issues where the bolt would cycle and chamber a new round, but the trigger would not budge. Thought I had a bad BCG so I purchased a new one from Aero (figured that it didn't hurt to have a backup anyway) but same issue. Have been dealing with this issue for almost a year and finally called my armorer. After describing the issue he gave me two things to test. The first test was to swap the lower with a known good unit (happens to be one with the Wilson Combat TTU in it). Worked flawlessly, which he confirmed means that there's an issue with the trigger unit. I've been running 2 Wilson Combat units for quite awhile and with much heavier use. One of them has close to 2k rounds with zero issues.

These triggers seem to be highly rated and I may have just received a bad unit. This was my first CMC product and I'd be very hesitant to take a chance again at their cost. The Wilson TTUs have run flawlessly for me and at close to $200 with tax and shipping, it's not worth chancing it again.