Shocking surveillance footage shows the moment a man was gunned down outside a Bronx bodega in broad daylight, according to police sources and video.

The victim, 35, was shot in the head outside the G&K Deli on Rosedale Avenue near East Tremont Avenue in Parkchester about 5:15 p.m. Friday, police said.

In the footage, the victim, wearing a yellow jacket, appears about to enter the business when he pauses to exchange words with two suspects: a man leaving the deli and another guy standing outside, both dressed in black.

Seconds later, the argument heats up, and the man who left the store punches the victim in the face, causing him to stumble backward into an ice machine on the sidewalk.

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