For the Shield Episode 5 of season 7.

Two cops pull up to a "chop shop" place and knock on the door. "Vic" gets shoved out of the way as his partner hears the click of a shot gun on the other side of the door. As the scene unfolds, somebody shoots a couple of times through the door.

You can see, during the shove, the sun glasses go flying off and then without any delay the glasses pop back on his face. The scenes are clearly spliced together.

On the bit-torrent download it is about 16:36 into the episode.