Unless they improved the design recently, they are pure shit. ... I bought 2 of them, they work as a container but don't expect a seal of any sort. I had to remove the gasket and add some RTV to make the seal larger and work and if there is any side pressure on it, the inside case falls off the lip of the lid. ...
The place to inspect the seals is
at the store,
as you pull each one off the shelf.
You could bring any or all of them back to the store.
Not sure whether they'll notice the RTV slathered all over the seal.
But even if they notice I suspect they won't care.
Glue some yak hairs in the sealer,
like might be left behind when touch-up has been applied by a worker
at the remedial station of an assembly line armed with
a 55 gallon drum of RTV and an
artisanal brush.
The clerk will think they're factory fresh
(and marvel at how the boys at HQ have finally solved
that
problem with gaps in the O-rings).
After 3 months of storage, packet full of ammo sitting my closet, I noticed that the sides were collapsed in and the lid was no longer sitting on the gasket. ...
Well, that sucks.
I just opened a box that had four other boxes stacked on top of it.
Straight as a ChiCom ruler.
But Mass CMRs require that the boxes be locked -
not that the sides have to be straight.