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Sog Piston Lock - Locking Systems
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Sog Piston Lock Info
The Piston Lock with Arc Actuator, is an exclusive and patented SOG design, and resembles the Axis Lock from the outside but is quite different in execution in that the lock mechanism that is operated by the thumb actually moves a spring loaded piston or a cam which serves as the locking bar for the blade tang.
The piston lock has gone through many different iterations and evolutions in the past several years. It started out initially as a slightly improved adaptation of the Bolt-Action Lock but now adds an Arc Actuator for improved location and better ergonomics on opening.