[nick425]

What happened here? Just picked this up and it is in very good shape and obvious low round count. What could have caused this? Thanks!

[tacops5372]

I've seen these on some other glocks before? I think it happens when people open slide to lock position and then slam it home empty. Without the extra weight from a round being loaded. The rails take a little bit of a beating. At least thats my opinion and thought of why that happens.

[tjpet]

Perfectly normal in a .40 Glock. The block rides up slightly during recoil and makes the indentations. Will go so deep and then stop. Nothing to worry about.

[milglock707]

I bought mine brand new and it formed these dents as well. I have put a lot of rounds through it with no problem. Seems to be normal for the .40.

[DWentz744]

.40s do that

[DannyR]

It's caused slide peening and is common to all Glocks, most common in 40's.

[nick425]

Awesome, thanks for the responses. Gonna go tear it up at the range tonight.