ThanksI have the Colonial Extreme, needs to be bigger but 50 is as far as they go. First take all the funky long gun holders out and buy rifle rods, go to Harbor Freight and get some magnetic tool holders and screw under the shelves to hold magazines, add one of the led kits and your pretty well set. I've got mine bolted to a slab with 1/2 inch Tapcon screws, pretty sure it's not going anywhere.
That's what I use as well. My insurance policy covers them if the house burns down.this might be an unpopular opinion, but I prefer a steel gun cabinet. Not fire rated, and can probably be pried open fairly easily, but it keeps the kids out, cost $150, and was light enough to carry up the stairs myself