Moonwalker

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Moonwalker (1988).

The weapons seen in this movie are:

M1921 Thompson

Michael Jackson uses a M1921 Thompson in the Nightclub to fire at Mr Big (Joe Pesci)'s troops.

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M1921 Thompson with 50-round drum magazine .45 ACP

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"HEE-HEE! CH'AMONE!"

Heckler & Koch HK94

Mr Big (Joe Pesci)'s troops use "futurized" HK94s, modded to look futuristic along with an ammo counter and flashlight.

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Heckler & Koch HK94A2 with Full Stock - 9x19mm

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Close-up of the HK94. Note the vented extended barrel

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Mr. Big's men fire their HK94s

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A close-up of the HK94's trigger. Here you can clearly see the distinctive HK triggerguard.

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A close-up of the ejection port and ammo counter. 883+ rounds = Moar Dakka.

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A good side-profile view of the HK94s that reveals the distinctive retractable buttstock

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A henchman uses the light attached to his HK94

Unknown revolver

Two unknown revolvers are seen, both in during the "Smooth Criminal" sequence. One is pulled by a thug when Michael enters the speakeasy, and the other is used by Michael Jackson to shoot a thug.

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He's really, really bad.

Shoulder Mounted Laser Cannon

Used by Mr Big (Joe Pesci)'s troops in the final battle scene.

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A closeup of the grip and trigger on one of the laser cannons

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Mr Big's men ready their laser cannons

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The mooks fire at Giant Robot Spaceship Michael Jackson. And no, it does not make sense in context.