Smith & Wesson SD and Sigma Pistols

Expected Results Reduces trigger pull weight by approximately 2.0 lbs. from factory Smooths trigger pull Improves reset Applicable To What Gun(s) The Apex SD Spring Kit produces a smoother trigger pull and improved reset and is designed for Duty/Carry use. The kit works as a stand-alone or in conjunction with the Apex SD Polymer Action Enhancement Trigger. Works in conjunction with the Apex SD/Sigma Polymer Action Enhancement Trigger. NOT for use in the Sigma Series pistols (see Apex Sigma...