This video showcases the Palmetto State Armory (PSA) Rock pistol firing the 5.7x28mm cartridge. A key aspect of the demonstration is the use of a 5.56mm silencer (specifically a Griffin Armament Optimus Micro) without a booster or Nielsen device. This setup is unusual and highlights potential testing of suppressor performance on a pistol caliber, especially with a larger rifle caliber suppressor, and the implications of running it without the typical booster mechanism designed to aid cycling.
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