The Apex Evolution IV Hammer for Smith & Wesson N-Frame revolver allows the user to tune the revolver for a lighter trigger pull weight by adjusting the strain screw for lighter main spring force, without sacrificing reliability.

• Semi drop-in replacement of factory hammer(minor fitting may be required)
• Reduction in trigger pull weight by adjusting strain screw.
• Converts revolver to Double Action Only(DAO), lacks a hammer spur for cocking.
• Works in current production S&W N-Frame centerfire revolvers only.