Can it be feed through your Glock? I don't see why not. The only issue is that sometimes, those really lite for caliber bullets can cause feed issues...so, being this long since you posted this, I'm sure you shot some of them. How did it come out?I too am a new G43X owner. My wife knew I was looking for 9mm ammo and came home with Liberty Ammunition/Civil Defense: 9mm +P. 50 Grain at 2000 fps. Can this ammo be fired though a G43X??? Never heard of a 9mm +P/50gr before.