There are videos around showing this thing but some of us like to hear from real world people.
Potential AFT honeypot and all aside, here is a quick clip of three shots with the FRT-15 installed in my mutt AR-15.
https://youtu.be/xFDJQ1LiccE
If anyone is interested in one for themselves I picked up two extra for friends and still have one available. I'm not sure if they are open to the public or not but they have only been selling restocks to people who have previously bought them. They retail for $380+shipping.