Arnold Schwarzenegger flaunted his legendary muscles while marking his 79th birthday.

The “Terminator” star was pictured pumping iron in what appeared to be Los Angeles in a pair of celebratory birthday pics Thursday.

In both snapshots, he wore a black t-shirt and matching shorts, and accessorized with a gold watch and a pair of sunglasses as he displayed his massive arms for his followers.

In the caption, the “Predator” star plugged his Pump Club — a fitness community app that offers customized nutrition tracking, workout routines, and more.

“I turn 79 today. I don’t want any gifts,” he wrote in part. “Instead, my team and I are turning the…

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