SUBSTITUTE Albert Adomah struck as late as the 90th minute as Rangers came from behind to beat promotion-chasing Watford at Vicarage Road.
Troy Deeney handed the Hornets the lead from the penalty spot in the 52nd minute, following Geoff Cameron’s challenge on Ismaila Sarr in the box.
But the Super Hoops battled back to take all three points.
Austin registered his 50th QPR goal on 73 minutes to level things up, heading home from close range after fine work from sub Chris Willock.
And the comeback was completed in the final minute of normal time, as Adomah took control of Todd Kane’s centre before coolly sliding beyond Daniel Bachmann.
R’s boss Mark Warburton made three changes to his starting XI for the trip to Hertfordshire, following last weekend’s 1-0 home defeat to Derby County.
Midfielder Stefan Johansen was handed his Rangers debut after recently joining on loan from Fulham, while Lee Wallace returned from a calf injury to feature at left-wing-back.
Macauley Bonne also replaced Lyndon Dykes in attack – self-isolating after a family member contracted Coronavirus – with Willock and Niko Hamalainen dropping down to the bench.
The R’s lined up as: Seny Dieng; Kane, Rob Dickie, Cameron (captain), Yoann Barbet, Wallace; Dom Ball, Ilias Chair, Johansen; Bonne, Austin.
Rangers faced a Watford side unbeaten in four Championship outings. The Hornets had won their past three at home, keeping a clean sheet in each of those fixtures.
Rather impressively, Xisco Munoz’s charges had won 10 of their 13 fixtures at Vicarage Road this term.
But they faced a QPR side who had won their past two trips away from W12, at Luton Town and Cardiff City.
Rangers also made a bright start, posing more of an attacking threat in the opening stanza.
Home goalkeeper Bachmann was first tested on 13 minutes, saving comfortably from Austin’s edge-of-the-box attempt.
Eight minutes later, Austin also headed Ball’s looping cross over.
Watford didn’t really threaten until the half-hour mark, though went mightily close to taking the lead.
A right-wing corner was touched on by a stretching Kane and into the path of Francisco Sierralta, whose subsequent header forced a fantastic, flying stop from Dieng.
The hosts upped the ante a little thereafter. In the 35th minute, Nathaniel Chalobah’s box attempt deflected just wide of the left-hand post while, five minutes later, Joao Pedro headed beyond the upright.
The first half would end goalless – but Watford would edge in front seven minutes into the second.
Cameron was penalised for tripping Sarr in the box and home skipper Deeney made no mistake thereafter, blasting beyond Dieng in the 52nd minute.
Things became a little untidy after that, and a first R’s change eventually arrived in the 67th minute. Debutant Johansen made way for Willock.
Rangers subsequently spurned a couple of good opportunities. Kane’s looping header dropped just over the bar then, from an even-better chance, Bonne slid Wallace’s low left-flank delivery straight at Bachmann.
However, the Hoops would level matters 17 minutes from time.
Excellent work from substitute Willock down the right ended with the former Benfica man picking out Austin in the box, who headed beyond Bachmann to restore parity.
Rangers back on terms, then, but they had Dickie to thank for a goal-line clearance on 76 minutes, after Tom Cleverley let fly from inside the penalty area.
At the other end, in the 80th minute, Willock’s fierce low drive was held well by Bachmann.
The R’s then introduced Adomah and Charlie Kelman for Chair and Austin. George Thomas’ introduction for Bonne soon followed.
Thomas had a hand in the winning goal, as the R’s stole the points in the 90th minute.
On the right-hand byline, Thomas touched the ball back to Kane and, when he crossed for Adomah, the latter remained incredibly calm to tuck the ball under Bachmann.
Cue wild scenes of celebration, as the R’s toasted the goal that proved to book a third away league win on the spin.
Two-one to the Super Hoops.