I have been reading some pros and cons on the Glock 26,Generation 4.I just got off the phone with Glock in Smyrna. There have been some issues with 19's Generation 4 due to the heavier recoil spring and light loads,i.e. Winchester White Box. He said the Glock 26,Generation 4 has had no complaints.All the springs are the same as generation 3. Byron