The fourth line centre converted a Mason Appleton feed, firing the disc through Henrik Lundqvist's pads to give the Jets their 8th win in their last 9 home contests.
"It was kind of a 2 on 2 rush. I was just trying to be in the right spot for if that puck did bounce out or if there was a rebound or something. I was just trying to get in that guy’s blind spot, that was covering me, and I was able to kinda get past him. Apps started making a play to the net and I was fortunate to put it in," said Copp.
The Jets fired a pair of goals just under a minute apart in the third period to take the game away from the Rangers, who fought hard to get the lead early in the final frame.
Winnipeg is now 12-0-0 when tied after the second period.
"Yeah, I think what we’re really good at is playing in the other team’s end, so we can kind of grind down a team over the course of 60 minutes. We didn’t have our best for the full 60 tonight, for sure. But we’re confident in our game and we kinda reset after two, we said ‘You know, we’re tied at home, we gotta win these games.’ I think it just says a lot about our confidence and our ability to mentally reset," said Copp.
Joe Morrow scored his first of the season at 5:22 off a slapshot from the right point to tie it before Copp gave the Jets the lead 1:59 later.
Mark Scheifele scored twice and added an assist for Winnipeg.
Joe Morrow also scored for the Jets, who moved to 36-18-3 on the season.
The win also moved them atop the Western Conference standings with 75 points.
Connor Hellebuyck stopped 34 shots for the Jets.
Mika Zibanejad had a pair of goals for the Rangers.
Pavel Buchnevich had the other New York goal.
Henrik Lundqvist turned aside 32 shots for the Rangers, who dropped to 24-24-3 on the season.
Mark Scheifele scored just under five minutes into the first period, converting a Joe Morrow feed from the right point to give the Jets an early lead.
Kyle Connor hit Morrow with a crisp pass from the corner before the Jet defenceman found Scheifele with a cross ice feed which he promptly fired past Rangers goaltender Henrik Lundqvist.
Scheifele made it 2-0 at 18:36, gaining control of the puck just outside his own blue line before skating down the right side boards, pulling the puck into his body before unleashing a wrister, beating Lundqvist blocker side, just inside the post to score his 30th of the season at 18:36.
“It was a great play," said Scheifele. "Obviously he knocked it out of the air, and then he got on his horse to drive the middle for me, obviously cleared a lot of space. I was looking for KC to maybe pop open and it didn’t and it was a great play by Wheels.”
Mika Zibanejad got New York on the board 38 seconds into the second period, scoring from the side boards after his shot went in off of Jets defenceman Jacob Trouba's skate.
With Dustin Byfuglien off for elbowing New York drew even when Pavel Buchnevich redirected a Ryan Strome shot past Hellebuyck at 19:19 to tie the game at 2.
Mika Zibanejad scored just under a minute into the third when he got another fortunate bounce, this time off of defenceman Jacob Trouba's leg and then Josh Morrissey's stick and past Hellebuyck to give New York a 3-2 lead.
The goal was his 25th of the season.
Joe Morrow tied it up on a slapshot from the right point at 5:22, converting a Mark Scheifele feed.
The goal was his first of the season.
Andrew Copp gave the Jets the lead 7:21 into the third, squeezing the puck through Lundqvist's pads to make it 4-3.
The goal was his 6th of the season.
Rangers winger Mika Zibanejad, who had a pair of goals in the contest, liked the way his club battled back.
"I thought we dug ourselves a hole in the first but I thought we battled the last two periods," he said.
"I always say it's nice to see the bounces go in but we didn't win today so it doesn't really matter," he added.
New York Head Coach David Quinn said the game was an uphill battle and one they could have won.
"Really disappointing because I thought for forty minutes we played really well and hard. We dug ourselves that hole in the first period where we were flat and didn't have a lot going on, you know. But I think it's a good sign we battled back. We turned the switch on which isn't easy to do when you play that poorly in the first to come out the way we did in the second and third," said Quinn.
"We've got to be dialed in on that, focus on that and build on that. It was a winnable game for us and disappointing we didn't come out with two points," he added.
Jets Head Coach Paul Maurice said the game went through different phases.
"The first period was a big bulk of the game that we played in Buffalo. It’s the way we played offensively in Ottawa. No, I didn’t care for the second period. But I almost thought we needed… let me rephrase it, we got a real bad break on the 3-2 goal. We had bad break on the first one, we kicked the first one off… we almost needed that to snap back, to go back to what we were doing in the first and then we did that and we were a much better hockey team."
SHOTS-NEW YORK 37 WINNIPEG 36