Depends a lot on a few things really bud , budget/transportation/what’s going in the box and even just the look you want ?
Budget , that’s the simplest to answer are you on a tight budget ? so you’d be looking at a cheap’n’cheerful single gun case from Fleabay or have you a mound of beer tokens to spend so a Pelli case is the best ? OR something in between .
Transportation , are you putting it straight in to the back of your car and then straight out and on to a table in the safezone(so the fleabay one is good enuff) OR are you jumping out of the back of a Herc at 30,000ft and HALO’ing in to get to your gameday ? In which case I’d recommend a Pelli case ! Or something inbetween .?
Whats going in the box , just the gun on its own or all the bells’n’whistles that go with it as well ? Is it going to be a box just for that one gun or as you get more (and you will ! ?

) you’ll be using the same case for all of them .
The look you want , do you want something that looks quite incongruous(so it won’t stand out in public)or your not bothered if it looks like something Q would send to James Bond full of guns and gadgets ? ?