Is tis the one you meant?
40 mm Airburst Product Demonstration - YouTube
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Is tis the one you meant?
40 mm Airburst Product Demonstration - YouTube
The lack of all armour and blast or fragment protection on the $50,000,000 hammer apparently reflects the current cheerful assumptions that the enemy will either never get close enough to hit back or won't have anything that can hit back. Looks like a burst from a .50 Cal, or the blast from a near miss explosion could ruin it for good.