I retired my stock2 that had just over 120k rounds through it. It still is a good backup gun. Replaced with a Defiant Stock. I actually like it better. These guns run and run. Enjoy.
Also you can remove the primers from the tube and put the tube back into the magazine. Look down from the top of the magazine and see if the primer pocket in the shuttle is lined up with the magazine.
The new and improved guide rod fits into the 'pocket" of the frame (where the slide stop/barrel base resides) which doesn't move around like the original guide rod.