CBR has a 7 page preview of Destroyer #4 for your viewing pleasure here. You'll be able to read the other 15 pages when the issue is in stores on July 1st.
Head over to Comics Continuum and check out their Marvel comics first looks, including the first five pages of Destroyer #3, here. It's a preview you can read!
Also, this is an excuse to post a picture of Turret. Eh's a pretty cool guy.