Character mistake: When Frank is starting to show Amy how to take the gun from him he removes the magazine and makes the statement "clip empty" - any Marine, certainly one as well trained as him would never refer to that as a "clip" - it is a magazine. A "clip" is a device intended to help rapidly load ammunition into a magazine.
The Punisher (2017)
1 mistake in One-Eyed Jacks - chronological order
Starring: Jon Bernthal, Ben Barnes, Ebon Moss-Bachrach, Amber Rose Revah
Frank Castle: One Batch, Two Batch, Penny and Dime.
Trivia: Ben Barnes plays Frank Castle's friend Billy Russo. In Stardust he played the father of Charlie Cox, who plays Daredevil in another Marvel/Netflix series.
Two Dead Men - S1-E2
Question: How does The Punisher manage to give Micro a cell phone with which to call him?
Answer: He calls him back.