Light strikes on new 26

Went to the range yesterday with a new glock26. I had about 10 light strikes out of 150 rounds using two types of factory practice ammo. I have not had any probs. with this with other gun using the same ammo. When I got home I checked and could hear the firing pin move back and forth freely. I saw a dent in each primer and all fired when I reloaded them a second time. The gun was cleaned prior to shooting.



I am wondering about the firing pin spring??

Light strikes on new 26