I bought the early access adaptor to use with a TM VSR which was set up to use the TDC in the stock TM hop chamber. I’ll get to that.
The mag adaptor is real nice, solidly printed as you would expect with a Tridos product. It has some well thought out features like the doudle release buttons to take it out of the rifle. I have used it in a number of games, but not without issue, remember that pesky stock TM hop chamber?
After lengthy discussions with Mikus and the Tridos team, I tried various springs, retention arms and techniques to make this work flawlessly, none worked perfectly, some did but caused jams or double feeds.
In the end, I ordered the Action Army hop chamber (red one piece available from Tridos). It was easy to fit, with a part delivered from Tridos to help the TDC work, this solved my problem.
If you want the M4 Mag adaptor, I highly recommend using the Action Army hop chamber, at the very least, if you’re using a TM VSR.