Firearms, grips for firearms and methods of using the same are disclosed. An example grip includes an exterior grip defining an inner bore; a slider located within the bore for axial movement relative to the exterior grip, the slider having a projection to selectively detachably engage the at least one transverse slot of the rail; and a screw rotatably mounted within the exterior grip. The screw threadingly engages the slider to axially move the slider into and/or out of engagement with the rail, but the screw is substantially secured against axial movement relative to the exterior grip.