the 19X is another solution looking for a problem. why would one run a full length grip and shorter sight radius? no point. can always just get a 19 sized pistol and run a 17 mag if you want. still has enough grip length for entire hand. if the 19X gets someone excited then whatever why not just buy it and enjoy but from a functional perspective it offers nothing over a standard 17 or 19 (unless a lanyard loop is important). the funniest part is the gen 5 mags won't even fit until the baseplates are exchanged for standard ones. so it's a glock that doesn't run on glock mags. bravo.