What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Descending on zombz 6 arrival at about 16,000' near crwlr waypoint in light turbulence at an indicated airspeed of about 250 KTS, the landing gear extended uncommanded. I reduced speed and alerted Denver approach that I had a landing gear issue and could not meet the star speed requirements (needed to reduce speed to ​<200 KIAS per aircraft limitations). Denver ​acknowledged and approved lower speed​, asked if I needed further assistance to which I replied 'not at that moment'. I noticed that the red gear unlocked light was illuminated, and the gear handle was in the up position. I lowered the gear handle and observed three green lights (gear down) and the red light extinguished. I ​alerted Denver that I had three green - no red, and continued with vectors for a visual landing on rwy 17L at kapa. ​Denver elected to declare an emergency. I was met ​by airport personnel upon landing who wanted to conf​irm we were ok, and provided my name and cell number. I then called privacy data omitted(​my aircraft manager) to schedule maintenance.
As the FAA filed it
DESCENDING ON ZOMBZ 6 ARRIVAL AT ABOUT 16,000' NEAR CRWLR WAYPOINT IN LIGHT TURBULENCE AT AN INDICATED AIRSPEED OF ABOUT 250 KTS, THE LANDING GEAR EXTENDED UNCOMMANDED. I REDUCED SPEED AND ALERTED DENVER APPROACH THAT I HAD A LANDING GEAR ISSUE AND COULD NOT MEET THE STAR SPEED REQUIREMENTS (NEEDED TO REDUCE SPEED TO ​<200 KIAS PER AIRCRAFT LIMITATIONS). DENVER ​ACKNOWLEDGED AND APPROVED LOWER SPEED​, ASKED IF I NEEDED FURTHER ASSISTANCE TO WHICH I REPLIED 'NOT AT THAT MOMENT'. I NOTICED THAT THE RED GEAR UNLOCKED LIGHT WAS ILLUMINATED, AND THE GEAR HANDLE WAS IN THE UP POSITION. I LOWERED THE GEAR HANDLE AND OBSERVED THREE GREEN LIGHTS (GEAR DOWN) AND THE RED LIGHT EXTINGUISHED. I ​ALERTED DENVER THAT I HAD THREE GREEN - NO RED, AND CONTINUED WITH VECTORS FOR A VISUAL LANDING ON RWY 17L AT KAPA. ​DENVER ELECTED TO DECLARE AN EMERGENCY. I WAS MET ​BY AIRPORT PERSONNEL UPON LANDING WHO WANTED TO CONF​IRM WE WERE OK, AND PROVIDED MY NAME AND CELL NUMBER. I THEN CALLED ^PRIVACY DATA OMITTED^(​MY AIRCRAFT MANAGER) TO SCHEDULE MAINTENANCE.