 Most models have the capability of being fired single- and double-action and feature an ambidextrous frame-mounted combat "switch" style manual safety that locks the sear so the trigger cannot be moved rearward as well as an internal firing pin block safety which stops the firing pin from travelling forward.The manual safety allows the pistol to be carried with the hammer back, ready for use just by switching the safety off, a configuration known as "condition one".Unlike most other semi-automatic pistols, the slide rides inside the frame rails rather than outside similar to the SIG P210.