Smother Trigger Pull Applicable to all Smith and Wesson MP Pistols, Including Shield! Gunsmith Fit Sear for All Sizes and Calibers Works With or Without Thumb Safeties, Magazine Safeties, and I.L.S. The Apex Gunsmith Fit Sear is precision machined from a billet of A2 tool steel to produce the most durable product available. The sear cam lobe is set to similar distance from the sear pivot point as the factory sear. Additionally, the rear face of the sear incorporates the exclusive Apex geometry. The result is a cleaner, lighter trigger pull with the same trigger break position as the factory original counterpart. Like all of our sears, the GFS is fully heat treated and hardened throughout. This allows the gunsmith to shape the sear cam lobe to suit their customers preference without the worry of affecting the inherent strength, durability or performance of the part.