I've had my PT709 for about 5 months and have put about 400 rounds through it. It occasionally doesn't lock back on the last round. This has gotten worse each time at the range. If I drop the magazine and reinsert, the gun locks backs. I've cleaned and appropriately oiled the gun and it still happens. I noticed that the magazine spring allows the follower to rock back (see pictures below). I locked the gun back with the magazine in. I used a screw driver to gently push the back side of the follower down, putting the magazine in the rocked back position. As I did this, the clip that usually sits on the step of the follower (don't know what it is called), slipped down beside the follower. I closed the gun and now it won't lock back. I called Taurus about it, returned the magazine ($1.69 postage, can't beat that) and got a new magazine from them in less than a week. The spring on the new mag is stronger, but it still allows the follower to rock back and the clip to slip off the step. I haven't been out to the range yet with the new mag, but wanted to know if anyone else has this problem.
Follower in correct position.
Follower in rocked back position.

