By Neptune's beard! Doing the AR underwater workout (VIDEO)

Don’t try this at home! The guys at Apopka, Florida-based Spike’s Tactical say this full-auto 9mm AR build is heavily modified specifically to fire underwater. “However it fires just as well above water,” notes the shop.

Meanwhile, reports out of Russia have it that special ammo for Moscow’s underwater dart-firing arsenal is ready to be cranked out in Cold War-level quantities. Coincidence?

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