I have the PSA AR-9 which uses Glock mags and the Sig MPX. The Sig MPX is definitely a quality gun but the PSA 9mm shoots great and I really like the idea of using pistol mags so, FWIW, I'm most likely going to sell the MPX and keep the PSA 9mm.....

Biden's most truthful quote ever came during his first press conference, 03/25/21.
Drum roll please...... "I don't know, to be clear." and THAT is one promise he's kept!!!