Reservoir Dogs Shoulder Holster?

[Indigo]

One of my favorite movies

So i got the black suit and white shirt of course pretty universal but was wondering if anyone here knows the type of holster used in the movie and anyother tips and pointers about their appearel.

even the tie i was wondering about that all research i could be doing myslef but wondered if anyone here is already done all that and would be so kind as to direct me to some places


-matt