DENVER — Carson Benge’s full toolbox is open for business. There is plenty to like about the Mets rookie, starting with his superior outfield range and throwing arm. But lately his bat has entered the equation, giving the team a glimpse of his full skill set. He had a second highlight-reel catch in as many games Monday, before continuing his recent offensive uptick with a home run in helping the Mets to a 4-2 victory over the Rockies at Coors Field. The victory was the team’s third in four games to begin the road trip. It wasn’t a perfect day for Benge; he stumbled retreating on a fly to center in the seventh inning, giving Jordan Beck an RBI double that extended the inning. But the Mets survived it. Benge reached base three times in Sunday’s 5-1 victory over the Angels. Included was an RBI double that placed him on base for a second time in the game before Mark Vientos homered. Benge took a .186/.255/.278 slash line into play, underscoring his struggles over his first three weeks before beginning to emerge.…