Boro, in their first ever foray into the fourth round, took a 37th-minute lead through Anthony Dudley, only for Armstrong to level just before the break.
Both sides had efforts cleared off the line after the break but Armstrong proved the saviour of the National League high-flyers with a 66th-minute winner.
“It’s a fantastic victory for us,” Barnet boss Dean Brennan said. “A really tough plavce to come and we’ve come up against a team who are flying at the moment, their form has been amazing.
“That was a big test for us but our players stood up to that test today.
“We’ve been hit by a big injury crisis at the club right now so we put out a very young team. To come through this test is huge for us.”
Denne historien er fra January 14, 2024-utgaven av The Non-League Football Paper.
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Denne historien er fra January 14, 2024-utgaven av The Non-League Football Paper.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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ENSIGN TEEN IS TAYLOR MADE!
WHITE Ensign boss Aaron Bloxham has hailed teenage talent Taylor Jacobi after his stoppage-time winner created history.
RAMADAN A RHYTHM IS BACK IN AT BLUES!
CEMAL RAMADAN reckons Bury Town have got back into their rhythm- but knows the Isthmian North title race is going to be a long haul.
DECRUZ IS SINGING THE BLUES FOR DREAM TIE
MERSTHAM manager Jamie Decruz says it would be \"crazy\" not to stage his side's glamour FA Youth Cup tie with Chelsea anywhere other than Stamford Bridge.
GLASSBOYS'JORDAAN IS A SCROOGE FOR BUCKS!
STOURBRIDGE snatched a dramatic stoppage time equaliser to seal a share of the points following a pulsating contest with promotion rivals Telford.
CLINICAL CALLUM HITS THE BULLSEYE
DARTFORD their D place in the play-off places as a 79th-minute goal from Callum Jones gave Adrian Pennock's side all three points.
ARDLEY'S OFF TO A WINNER!
NEAL Ardley got off to a winning start as Woking boss with victory over play-off chasing Altrincham and then admitted the Robins have set the mantra he would like the Cards to follow.
MADINE'S A MARVEL AT POOLS
GARY Madine's third goal in a Hartlepool United shirt fired his team to within two points of the National League play-offs after a dramatic victory over Yeovil Town.
BEES RATTLED BY TOP TOWN
BARNET slipped behind York City at the top of the National League after they were held to a draw by FC Halifax Town - a result thoroughly deserved by the Shaymen who battled for the whole game and gave the Bees barely a sight of goal.
Rovers denied by resilient Shots
DISAPPOINTED Steve Cotterill believes that his side had enough chances to beat Aldershot Town after dropping two points in their title quest.
KEEPER JOS REVELS AS GOAL HERO
IF you think goalkeepers never score, you must be Bark-ing mad.
