KNS Precision Non-Rotating Pin Kit Gen ST Features The KNS Precision Non-Rotating Pin Kit replaces the factory trigger and hammer pins on an AR-15 or M16 pattern rifle with a non-rotating design intended to keep the pins from walking out or spinning in the lower receiver. Built in the .154 Gen ST configuration these stainless steel pins are machined to mil-spec dimensions for a proper drop in fit on compatible receivers. Stainless steel construction provides long term corrosion resistance compared to factory finishes keeping the pins functioning smoothly through repeated use. This upgrade addresses a common wear point in AR-platform triggers helping maintain consistent trigger feel over time. The kit s sideplates are treated with a black nitride finish giving them added hardness and wear resistance beyond a standard coating. This finish also keeps the sideplates visually consistent with most black AR-15 hardware and furniture. Designed to fit mil-spec AR-15 receivers the kit installs with standard armorer tools and does not require permanent modification to the lower. For AR-15 and M16 owners looking to lock down their trigger pins and improve long-term reliability this KNS Precision kit is a practical upgrade available for sale at GrabAGun. KNS Precision Non-Rotating Pin Kit Gen ST Specifications Manufacturer: KNS Precision Model: Non-Rotating Pin Kit Gen ST Material: Stainless Steel Finish: .154 / Black Compatible Hosts: Mil-Spec AR-15/M16 Type: AR-15 Trigger/Hammer Pins Available At: GrabAGun