A-Zoom 17103 StrikerCap 40 S&W 2-Pack Snap Caps

The A-Zoom StrikerCap 40 S&W is a precision-machined snap cap purpose-built for safe dry fire practice on striker-fired pistols. Unlike conventional snap caps, the StrikerCap is built rimless and is held precisely in place by an internal centering o-ring that grips the chamber walls, so the dummy round stays put during slide cycling and trigger work.