I purchased a new Beretta PX4 Sub compact the last week of Sept. I went to the range this weekend and had some issues. I started with just a single round in the clip. Chambered and Fired. The slide stayed back but the magazine would not eject. Fiddled with it a bit, magazine comes out slide racked forward. This repeated for both mags when firing one round out of the mag. So I put two rounds in the magazine. First round fine, second chambers, fire and slide locks back and magazine will not release. I did a field strip and started looking at what maybe going wrong. I noticed the slide was not catching on the actual lock back postion. Upon inspection it appears the slide lock back lever has a tab that is to contact the magazine raiser when the mag is empty. However it appears that with the play in the magazine to mag well and the small amount of engagement that this tab is failing to catch the plastic raiser. In fact this little lock lever arm in about 5 mag changes (10 rounds total) has started to gouge the plastic. I've noticed if I hold the magazine to the left side of the gun it catches the stop lever, and the magazine will eject when the slide is back freely. However if you put the magazine in empty and the slide back you can see the arm is already going to miss the plastic raiser. I also tried manually locking the slide back after the final round was discharged, however the magazine still will no fall freely as the slide-lock-back-lever arm is wedged against the magazine raiser. To prevent further gouging you have to lock the slide back manually, then use your finger to pull the raiser out and away from the lever arm, then you can press the mag release it it drops easily. I contacted Beretta today. They informed me that I could ship the gun to an approved Beretta repair shop in California for a warranty repair. I'm not really happy with this because it's a new gun and I don't feel I should be paying overnight freight to repair a from the factory defective gun. I really feel this should have been caught during their quality check. The gentleman I spoke with is going to send me a new lever for me to replace hoping it resolves my issue and prevents me from having to ship my gun off at my expense and waiting 3-4 weeks for turn around. If it does not resolve my issue I do plan on escalating this up and believe Beretta will be paying freight. I guess this is more of a rant and an awareness for other potential buyers. Now that I know what it's doing and what it's cause is visually I think it could have been determined prior to purchase, and I would have never bought it. When reading the reviews of the gun I did not find any mention of this problem prior to purchase. I'm thinking it could be there is too much play in the mag well or the arm on the lever is too short for full contact. Has anyone else has this issue? If so how did you resolve? Anyone else with a px4 sub-compact is your magazine able to shift side to side, locks in, but you have about 1/16" play from side to side?