Replacements - S1-E4
Continuity mistake: In the shot before Buck falls back he fires twice. The first time it's ok, the second time the cocking bolt on the side of his Thompson doesn't move.
Replacements - S1-E4
Continuity mistake: We see Cobb firing over a small wall that is disintegrated by mortar fire. The camera does an instant cut and now Cobb is just hiding, not firing. (00:36:20)
Replacements - S1-E4
Continuity mistake: Just after the Sherman has knocked down the telephone pole we see two German guys up on a roof. In the long shot there is a bullet hole in the brickwork in front of them and in the close up it's gone. (00:34:30)
Replacements - S1-E4
Continuity mistake: When the medic is shot while attending to Patton, he is shot in the left leg but holds his right leg while on the ground. (00:27:00)
Answer: That actually is the clip. It is loaded into the top of the rifle, and is ejected with the last round. See http://www.wwiitech.net/main/usa/weapons/m1/.
J I Cohen