MGI MARCK-15 Hydra 1.5 Minute Caliber Swap from 5.56 to 9MM @AlloutdoorTV
MGI MARCK-15 Hydra 1.5 Minute Caliber Swap from 5.56 to 9MM @AlloutdoorTV
Uploaded January 2017 | Updated September 2026, 3 weeks ago
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This Weapon System can adapt to multiple calibers without the use of any tools in just under two minutes per caliber. In this demonstration, Ben switched from 5.56 to 9mm in about a minute and a half.

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MGI MARCK-15 Hydra 1.5 Minute Caliber Swap from 5.56 to 9MM

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