The TFBTV crew puts the affordable PSA Rock 5.7 Pistol through a 1,000 round torture test if it can last with that amount of bullets fired.... "In this episode of TFBTV, James Reeves gets his hands on the cheapest 5.7x28mm pistol you can buy: The $350 dollar Palmetto State Armory Rock 5.7. The PSA Rock is inexpensive but, ergonomically speaking, pretty comfy.