During you time with Red Dead Redemption 2, you may occasionally notice that weapons that you had equipped previously may not show up in protagonist Arthur’s inventory. This may happen after you have died, or after you jump back into the game after turning it off for a while.
This may seem like a bug, but just because a gun doesn’t show up in Arthur’s personal inventory, does not mean that it has completely disappeared. They end up in your Horse’s saddle bags, where the bulk of you armory is actually carried, since Arthur can only carry a very limited number of weapons on himself at any one time.
All you have to do to access them again, is walk up to your Horse and press the button that opens the weapon radial (LB on the Xbox One Controller and L1 on the PlayStation 4 Controller). Now you can switch your arsenal up however you choose.
Update: This article is not about the actual bug causing weapons to disappear from the Horse’s inventory. You can read about that here.