Questions answered in The Walking Dead episode 804 ‘Some Guy’
By Adam Carlson
#4. What happened to the guns?
The Browning and other guns were moved from the location where Rick and Daryl were to another location. That location is the place where Ezekiel and The Kingdom had gone and suffered major fatalities.
When Carol made the tough decision to save Ezekiel and Jerry instead of stopping The Saviors from getting away with the guns, it appeared as though Negan and the people at The Sanctuary were about to get a huge supply of weapons to fight the survivors.
The truck was able to get away, but not without running into a couple of familiar faces. Rick and Daryl were on their way to the location they were given by the last man standing at the outpost they attacked and met up with the vehicle.
Rick leaped from his vehicle to theirs after killing the man on the back shooting with a mounted gun. Stabbing the man from The Saviors in the abdomen, the vehicle went off the road and the supplies never got back to The Sanctuary.