youll laugh but what I use for my ar15 pistols is a Wilson tennis racket case. It has a strap to throw over your shoulder and you can walk down main street and not get a second look. Also no attention if someone peeks in that back set of the truck and sees one. I keep the 7 inch 300 bo under the rear seat in one. Well unless your in a small town like I am and everyone knows you don't play tennis or shoot golfs! I bought two of them and took some of the foam out of boxes palmetto ships there uppers in and used trim adhesive to glue it on on the inside. They even have an outside zip pocket you can carry a mag or two in. Might not be a great idea for an area where tennis is popular but weve got a run down court that I havent seen anyone use in 20 years. So not to many are going to want to break in my truck for a tennis racket. For my 4.5 in 9mm ar15 I use a ruger 1022 take down case. Fits in there perfectly along with 5 mags. I painted over the red RUGER so it wouldn't attract attention and us a bungy to strap it on the roll bar in the back of my jeep.
MAKE AMERICA GREAT AGAIN! STEEL FOR TANKS NOT FENCES!!!