iirc, those old style bolters used to come on a frame of 3 bolters, 3 knives and 3 pairs of shoulder pads. Always got extras over what you needed too it seemed.
There was another frame of arms to hold them in various positions.
And I had forgot about the bedrool/box thingy

the metal pieces with the chaplain biker were a similar set with a different bit of stowage.
I've got loads of those little wheel nut things in my bits box never got used
lol.
I throw em onto bases sometimes buried in the mud or something.... lots of my bits box ends up as basing materials being chopped up into smaller pieces