I have tried three different 3D internal suppressors on my Avenger. They did cut down some noise but it wouldn't be neighborhood quiet.Not sure how quite these are, but I do have his 1/2-20 one on my .177 and it does great. I was going to get one of these but the TalonP I picked up used already had the DonnyFL adapter to 1/2-20 on it.
AirForce TalonP Suppressor
AirForce TalonP Suppressor Designed exclusively for the AirForce TalonP. Easy Install. No adapter necessary. 3D Printed in ABS plastic in the US by a veteran-owned business. 8 interior baffles and …buck-rail.com