u/Enkidu90046

I am researching various moderately-priced delayed blowback PCC/PDW options. The Mat-9k is on my short list, but I’ve seen some rumbling about reliability issues, including on this subreddit. My question is whether these reliability issues are a thing if you are using the Matador Arms lower, or is this mostly a problem if you get a third party lower?

Also, is anyone using the new hydraulic buffer yet? If so, is it still reliable? Whatever platform I end up going with will be suppressed and shooting subsonic ammo (and I want it reliable with JHP/FN ammo) with a 3-position super safety).