308 aero precision must have... - KNS Precision DPMS .308 Push-Button .308 Takedown Pin

The .308 standard takedown pin slot points down and creates a flat spot whereas the round KNS eliminates the spring and detent and provides full support. The KNS DPMS-308-PBTD pin fits Aero Precision Receivers much better than the undersized pins in the AP LPK. The KNS removes easily once you get the hang of it. All my Aero 308 builds have the KNS Takedown pins because they slow receiver wear and are very well made.